diff --git a/homeassistant/components/buienradar/weather.py b/homeassistant/components/buienradar/weather.py
index aedfcf82aea..cdb8adf1dac 100644
--- a/homeassistant/components/buienradar/weather.py
+++ b/homeassistant/components/buienradar/weather.py
@@ -136,7 +136,6 @@ class BrWeather(WeatherEntity):
         self._stationname = config.get(CONF_NAME, "Buienradar")
         self._attr_name = self._stationname or f"BR {'(unknown station)'}"
 
-        self._attr_condition = None
         self._attr_unique_id = "{:2.6f}{:2.6f}".format(
             coordinates[CONF_LATITUDE], coordinates[CONF_LONGITUDE]
         )
diff --git a/homeassistant/components/smhi/weather.py b/homeassistant/components/smhi/weather.py
index e62d236c819..db5d7287ccd 100644
--- a/homeassistant/components/smhi/weather.py
+++ b/homeassistant/components/smhi/weather.py
@@ -149,7 +149,6 @@ class SmhiWeather(WeatherEntity):
             name=name,
             configuration_url="http://opendata.smhi.se/apidocs/metfcst/parameters.html",
         )
-        self._attr_condition = None
         self._attr_native_temperature = None
 
     @property
diff --git a/homeassistant/components/weather/__init__.py b/homeassistant/components/weather/__init__.py
index 635c4948285..74671f0c1df 100644
--- a/homeassistant/components/weather/__init__.py
+++ b/homeassistant/components/weather/__init__.py
@@ -227,7 +227,7 @@ class WeatherEntity(Entity, PostInit):
     """ABC for weather data."""
 
     entity_description: WeatherEntityDescription
-    _attr_condition: str | None
+    _attr_condition: str | None = None
     # _attr_forecast is deprecated, implement async_forecast_daily,
     # async_forecast_hourly or async_forecast_twice daily instead
     _attr_forecast: list[Forecast] | None = None