From 25937d786827d4ad8526dbbda3336dbac31f56a1 Mon Sep 17 00:00:00 2001
From: Andrea Arcangeli <aagit@users.noreply.github.com>
Date: Thu, 2 Jan 2025 18:37:36 +0000
Subject: [PATCH] open_meteo: correct UTC timezone handling in hourly forecast
 (#129664)

Co-authored-by: G Johansson <goran.johansson@shiftit.se>
---
 .../components/open_meteo/weather.py          |   13 +-
 .../open_meteo/snapshots/test_weather.ambr    | 1070 +++++++++++++++++
 tests/components/open_meteo/test_weather.py   |   46 +
 3 files changed, 1125 insertions(+), 4 deletions(-)
 create mode 100644 tests/components/open_meteo/snapshots/test_weather.ambr
 create mode 100644 tests/components/open_meteo/test_weather.py

diff --git a/homeassistant/components/open_meteo/weather.py b/homeassistant/components/open_meteo/weather.py
index 7079b37d636..51ee91de083 100644
--- a/homeassistant/components/open_meteo/weather.py
+++ b/homeassistant/components/open_meteo/weather.py
@@ -2,6 +2,8 @@
 
 from __future__ import annotations
 
+from datetime import datetime, time
+
 from open_meteo import Forecast as OpenMeteoForecast
 
 from homeassistant.components.weather import (
@@ -107,8 +109,9 @@ class OpenMeteoWeatherEntity(
 
         daily = self.coordinator.data.daily
         for index, date in enumerate(self.coordinator.data.daily.time):
+            _datetime = datetime.combine(date=date, time=time(0), tzinfo=dt_util.UTC)
             forecast = Forecast(
-                datetime=date.isoformat(),
+                datetime=_datetime.isoformat(),
             )
 
             if daily.weathercode is not None:
@@ -155,12 +158,14 @@ class OpenMeteoWeatherEntity(
         today = dt_util.utcnow()
 
         hourly = self.coordinator.data.hourly
-        for index, datetime in enumerate(self.coordinator.data.hourly.time):
-            if dt_util.as_utc(datetime) < today:
+        for index, _datetime in enumerate(self.coordinator.data.hourly.time):
+            if _datetime.tzinfo is None:
+                _datetime = _datetime.replace(tzinfo=dt_util.UTC)
+            if _datetime < today:
                 continue
 
             forecast = Forecast(
-                datetime=datetime.isoformat(),
+                datetime=_datetime.isoformat(),
             )
 
             if hourly.weather_code is not None:
diff --git a/tests/components/open_meteo/snapshots/test_weather.ambr b/tests/components/open_meteo/snapshots/test_weather.ambr
new file mode 100644
index 00000000000..dd5beb56d77
--- /dev/null
+++ b/tests/components/open_meteo/snapshots/test_weather.ambr
@@ -0,0 +1,1070 @@
+# serializer version: 1
+# name: test_forecast_service[forecast_daily]
+  dict({
+    'weather.home': dict({
+      'forecast': list([
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-24T00:00:00+00:00',
+          'precipitation': 0.19,
+          'temperature': 7.6,
+          'templow': 5.5,
+          'wind_bearing': 251,
+          'wind_speed': 10.9,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-25T00:00:00+00:00',
+          'precipitation': 0.29,
+          'temperature': 5.4,
+          'templow': 0.2,
+          'wind_bearing': 210,
+          'wind_speed': 12.9,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-26T00:00:00+00:00',
+          'precipitation': 0.76,
+          'temperature': 4.8,
+          'templow': 1.8,
+          'wind_bearing': 230,
+          'wind_speed': 14.8,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-27T00:00:00+00:00',
+          'precipitation': 0.12,
+          'temperature': 4.5,
+          'templow': -0.1,
+          'wind_bearing': 143,
+          'wind_speed': 10.7,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-28T00:00:00+00:00',
+          'precipitation': 0.15,
+          'temperature': 3.4,
+          'templow': -0.2,
+          'wind_bearing': 143,
+          'wind_speed': 7.0,
+        }),
+        dict({
+          'condition': 'snowy',
+          'datetime': '2021-11-29T00:00:00+00:00',
+          'precipitation': 0.64,
+          'temperature': 2.2,
+          'templow': -0.5,
+          'wind_bearing': 248,
+          'wind_speed': 13.0,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-30T00:00:00+00:00',
+          'precipitation': 1.74,
+          'temperature': 3.0,
+          'templow': -0.3,
+          'wind_bearing': 256,
+          'wind_speed': 16.1,
+        }),
+      ]),
+    }),
+  })
+# ---
+# name: test_forecast_service[forecast_hourly]
+  dict({
+    'weather.home': dict({
+      'forecast': list([
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T03:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 6.6,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-24T04:00:00+00:00',
+          'precipitation': 0.03,
+          'temperature': 6.5,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T05:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': 6.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T06:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 6.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T07:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 6.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T08:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 5.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T09:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 6.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T10:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 6.5,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T11:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 6.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T12:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': 7.3,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T13:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': 7.6,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T14:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 7.6,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-24T15:00:00+00:00',
+          'precipitation': 0.06,
+          'temperature': 7.5,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-24T16:00:00+00:00',
+          'precipitation': 0.06,
+          'temperature': 7.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T17:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 6.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T18:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 6.6,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T19:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 6.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T20:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 6.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T21:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 5.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T22:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 5.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-24T23:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 5.5,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T00:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 5.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T01:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 5.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T02:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 5.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T03:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 4.9,
+        }),
+        dict({
+          'condition': 'partlycloudy',
+          'datetime': '2021-11-25T04:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 4.2,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-25T05:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.2,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-25T06:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.2,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-25T07:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.5,
+        }),
+        dict({
+          'condition': 'partlycloudy',
+          'datetime': '2021-11-25T08:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T09:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T10:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.6,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T11:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T12:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.7,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T13:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T14:00:00+00:00',
+          'precipitation': 0.03,
+          'temperature': 4.5,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-25T15:00:00+00:00',
+          'precipitation': 0.07,
+          'temperature': 4.5,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T16:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 4.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T17:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 4.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T18:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.9,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-25T19:00:00+00:00',
+          'precipitation': 0.09,
+          'temperature': 3.9,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-25T20:00:00+00:00',
+          'precipitation': 0.09,
+          'temperature': 4.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T21:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': 3.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T22:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-25T23:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T00:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.7,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T01:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.6,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T02:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T03:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.3,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T04:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T05:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T06:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T07:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T08:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T09:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T10:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.5,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T11:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T12:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 4.3,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T13:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 4.6,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T14:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 4.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T15:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': 4.6,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-26T16:00:00+00:00',
+          'precipitation': 0.1,
+          'temperature': 4.0,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-26T17:00:00+00:00',
+          'precipitation': 0.3,
+          'temperature': 3.5,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-26T18:00:00+00:00',
+          'precipitation': 0.2,
+          'temperature': 3.3,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-26T19:00:00+00:00',
+          'precipitation': 0.15,
+          'temperature': 3.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T20:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.7,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T21:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.3,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T22:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-26T23:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T00:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': 1.6,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T01:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T02:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.7,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T03:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T04:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.3,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T05:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T06:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.2,
+        }),
+        dict({
+          'condition': 'partlycloudy',
+          'datetime': '2021-11-27T07:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T08:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T09:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': -0.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T10:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.6,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-27T11:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.7,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-27T12:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.9,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-27T13:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 4.0,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-27T14:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 4.5,
+        }),
+        dict({
+          'condition': 'partlycloudy',
+          'datetime': '2021-11-27T15:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 4.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T16:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.5,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-27T17:00:00+00:00',
+          'precipitation': 0.1,
+          'temperature': 3.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T18:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': 2.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T19:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T20:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T21:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.6,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T22:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.3,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-27T23:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.0,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-28T00:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.6,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-28T01:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T02:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.6,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T03:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T04:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T05:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T06:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': -0.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T07:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': -0.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T08:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': -0.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T09:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T10:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.5,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T11:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T12:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T13:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T14:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T15:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T16:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 3.2,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-28T17:00:00+00:00',
+          'precipitation': 0.05,
+          'temperature': 3.0,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-28T18:00:00+00:00',
+          'precipitation': 0.05,
+          'temperature': 2.7,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-28T19:00:00+00:00',
+          'precipitation': 0.05,
+          'temperature': 2.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T20:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T21:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.5,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T22:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-28T23:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T00:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T01:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.6,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T02:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T03:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T04:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': -0.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T05:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': -0.3,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T06:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': -0.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T07:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': -0.5,
+        }),
+        dict({
+          'condition': 'snowy',
+          'datetime': '2021-11-29T08:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': -0.5,
+        }),
+        dict({
+          'condition': 'snowy',
+          'datetime': '2021-11-29T09:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': -0.5,
+        }),
+        dict({
+          'condition': 'snowy',
+          'datetime': '2021-11-29T10:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': -0.3,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T11:00:00+00:00',
+          'precipitation': 0.03,
+          'temperature': 0.3,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T12:00:00+00:00',
+          'precipitation': 0.03,
+          'temperature': 1.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T13:00:00+00:00',
+          'precipitation': 0.03,
+          'temperature': 2.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T14:00:00+00:00',
+          'precipitation': 0.02,
+          'temperature': 2.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T15:00:00+00:00',
+          'precipitation': 0.02,
+          'temperature': 2.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T16:00:00+00:00',
+          'precipitation': 0.02,
+          'temperature': 1.7,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-29T17:00:00+00:00',
+          'precipitation': 0.13,
+          'temperature': 1.4,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-29T18:00:00+00:00',
+          'precipitation': 0.13,
+          'temperature': 1.0,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-29T19:00:00+00:00',
+          'precipitation': 0.13,
+          'temperature': 0.7,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T20:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.0,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T21:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T22:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-29T23:00:00+00:00',
+          'precipitation': 0.07,
+          'temperature': 1.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-30T00:00:00+00:00',
+          'precipitation': 0.07,
+          'temperature': 1.7,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-30T01:00:00+00:00',
+          'precipitation': 0.07,
+          'temperature': 1.6,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-30T02:00:00+00:00',
+          'precipitation': 0.16,
+          'temperature': 1.5,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-30T03:00:00+00:00',
+          'precipitation': 0.16,
+          'temperature': 1.5,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-30T04:00:00+00:00',
+          'precipitation': 0.16,
+          'temperature': 1.3,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-30T05:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': 1.1,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-30T06:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': 0.8,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-30T07:00:00+00:00',
+          'precipitation': 0.01,
+          'temperature': 0.5,
+        }),
+        dict({
+          'condition': 'partlycloudy',
+          'datetime': '2021-11-30T08:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.1,
+        }),
+        dict({
+          'condition': 'partlycloudy',
+          'datetime': '2021-11-30T09:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': -0.2,
+        }),
+        dict({
+          'condition': 'partlycloudy',
+          'datetime': '2021-11-30T10:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': -0.3,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-30T11:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 0.2,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-30T12:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.0,
+        }),
+        dict({
+          'condition': 'sunny',
+          'datetime': '2021-11-30T13:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 1.9,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-30T14:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.2,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-30T15:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.4,
+        }),
+        dict({
+          'condition': 'cloudy',
+          'datetime': '2021-11-30T16:00:00+00:00',
+          'precipitation': 0.0,
+          'temperature': 2.6,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-30T17:00:00+00:00',
+          'precipitation': 0.03,
+          'temperature': 2.6,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-30T18:00:00+00:00',
+          'precipitation': 0.03,
+          'temperature': 2.5,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-30T19:00:00+00:00',
+          'precipitation': 0.03,
+          'temperature': 2.4,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-30T20:00:00+00:00',
+          'precipitation': 0.04,
+          'temperature': 2.5,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-30T21:00:00+00:00',
+          'precipitation': 0.04,
+          'temperature': 2.8,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-30T22:00:00+00:00',
+          'precipitation': 0.04,
+          'temperature': 3.0,
+        }),
+        dict({
+          'condition': 'rainy',
+          'datetime': '2021-11-30T23:00:00+00:00',
+          'precipitation': 0.88,
+          'temperature': 3.0,
+        }),
+      ]),
+    }),
+  })
+# ---
diff --git a/tests/components/open_meteo/test_weather.py b/tests/components/open_meteo/test_weather.py
new file mode 100644
index 00000000000..b43385c924a
--- /dev/null
+++ b/tests/components/open_meteo/test_weather.py
@@ -0,0 +1,46 @@
+"""Test for the open meteo weather entity."""
+
+from unittest.mock import AsyncMock
+
+import pytest
+from syrupy.assertion import SnapshotAssertion
+
+from homeassistant.components.weather import (
+    DOMAIN as WEATHER_DOMAIN,
+    SERVICE_GET_FORECASTS,
+)
+from homeassistant.const import ATTR_ENTITY_ID
+from homeassistant.core import HomeAssistant
+
+from tests.common import MockConfigEntry
+
+
+@pytest.mark.freeze_time("2021-11-24T03:00:00+00:00")
+async def test_forecast_service(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+    mock_open_meteo: AsyncMock,
+    snapshot: SnapshotAssertion,
+) -> None:
+    """Test forecast service."""
+    mock_config_entry.add_to_hass(hass)
+    await hass.config_entries.async_setup(mock_config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    response = await hass.services.async_call(
+        WEATHER_DOMAIN,
+        SERVICE_GET_FORECASTS,
+        {ATTR_ENTITY_ID: "weather.home", "type": "daily"},
+        blocking=True,
+        return_response=True,
+    )
+    assert response == snapshot(name="forecast_daily")
+
+    response = await hass.services.async_call(
+        WEATHER_DOMAIN,
+        SERVICE_GET_FORECASTS,
+        {ATTR_ENTITY_ID: "weather.home", "type": "hourly"},
+        blocking=True,
+        return_response=True,
+    )
+    assert response == snapshot(name="forecast_hourly")