home-assistant.io/source/_components/sensor.openweathermap.markdown
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---
layout: page
title: "OpenWeatherMap Sensor"
description: "Instructions how to integrate OpenWeatherMap within Home Assistant."
date: 2015-04-25 9:06
sidebar: true
comments: false
sharing: true
footer: true
logo: openweathermap.png
ha_category: Weather
ha_release: pre 0.7
ha_iot_class: "Cloud Polling"
---
The `openweathermap` platform uses [OpenWeatherMap](http://openweathermap.org/) as a source for current meteorological data for your location. The `forecast` will show you the condition in 3 h.
You need an API key which is free but requires a [registration](http://home.openweathermap.org/users/sign_up).
To add OpenWeatherMap to your installation, add the following to your `configuration.yaml` file:
```yaml
# Example configuration.yaml entry
sensor:
- platform: openweathermap
api_key: YOUR_API_KEY
monitored_conditions:
- weather
```
{% configuration %}
api_key:
description: Your API key for OpenWeatherMap.
required: true
type: string
name:
description: Additional name for the sensors. Default to platform name.
required: false
default: OWM
type: string
forecast:
description: Enables the forecast. The default is to display the current conditions.
required: false
default: false
type: string
language:
description: The language in which you want text results to be returned. It's a two-characters string, eg. `en`, `es`, `ru`, `it`, etc.
required: false
default: en
type: string
monitored_conditions:
description: Conditions to display in the frontend.
required: true
type: list
keys:
weather:
description: A human-readable text summary.
temperature:
description: The current temperature.
wind_speed:
description: The wind speed.
wind_bearing:
description: The wind bearing.
humidity:
description: The relative humidity.
pressure:
description: The sea-level air pressure in millibars.
clouds:
description: Description about cloud coverage.
rain:
description: The rain volume.
snow:
description: The snow volume.
{% endconfiguration %}
Details about the API are available in the [OpenWeatherMap documentation](http://openweathermap.org/api).