2025.9.3
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OpenWeatherMap

The OpenWeatherMap weather integration uses OpenWeatherMap as a source for meteorological and air quality data for your location.

There is currently support for the following device types within Home Assistant:

  • Sensor
  • Weather

You need to register for an API key: Sign up here.

Supported modes

There are currently two types of OpenWeatherMap services supported by this integration, with several corresponding modes.

One Call API 3.0

  • v3.0 : current weather, hourly forecast for 48 hours, daily forecast for 8 days

The One Call API 3.0 services requires a subscription. The subscription has a free tier with 1000 calls/day. Consider setting the limit on the OpenWeatherMap website to stay under the threshold where API usage incurs a cost. This is done in the Billing plans page, under “Calls per day”.

Free

  • current : current weather
  • forecast : weather forecast, in 3-hour steps for 5 days
  • air_pollution : current air pollution

The Free services require a registration but no subscription. Once signed up, the API key can be found from your profiles’ My API keys page.

⚠️ Important Deprecation Notice

OpenWeatherMap API V2.5 Deprecation

OpenWeatherMap API V2.5 has been deprecated and is no longer supported by this integration. You need to use API V3.0.

To continue using the service if you were previously using API V2.5:

  • Visit the OpenWeatherMap website and activate the One Call subscription.
  • During activation, you will be prompted for a credit card, but you will not be charged unless you exceed the free tier limits.
  • Configure your OWM integration to select mode v3.0.
  • Note: Subscription activation may take up to 2 hours.

For more details, set limits on your usage to avoid charges at OpenWeatherMap Subscriptions.

Important

If you register a new API key with OpenWeatherMap, it will be activated automatically. This typically takes between 10 minutes and 2 hours.
Keep in mind when configuring this integration that your new API key might not be active yet.
Invalid API-key errors can also occur if you use a key which doesn’t match the corresponding service (One Call API 3.0 versus Free).

Configuration

To add the OpenWeatherMap integration to your Home Assistant instance, use this My button:

Manual configuration steps

If the above My button doesn’t work, you can also perform the following steps manually:

  • Browse to your Home Assistant instance.

  • Go to Settings > Devices & Services.

  • In the bottom right corner, select the Add Integration button.

  • From the list, select OpenWeatherMap.

  • Follow the instructions on screen to complete the setup.

Parameter Value
API Key API Key from the website
Name Name of the integration
Latitude Latitude for weather forecast and sensor
Longitude Longitude for weather forecast and sensor
Mode
  • v3.0 (new API version) current weather plus daily forecast for 8 days, and 1-hour steps for 48 hours
  • current current weather data only, no forecast
  • forecast weather forecast only, in 3-hour steps for 5 days, no current weather data
  • air_pollution current air quality data
    		•
    Language Language for receiving data (only for sensor)

    A sensor entity will be created for each supported condition. Their IDs will follow the format:

    sensor.<integration name>_<monitored condition>

    Sensors provide data in the language that was selected when configuring the integration.

    Note

    The Weather entity provides data only in English. Home Assistant automatically translates it to the language configured for the frontend.

    If you want to change the weather location, you will need to delete and re-add the integration.

    Supported Weather Conditions

    Current Weather Conditions

    Condition Description
    cloud_coverage Cloudiness, %.
    condition Weather condition.
    dew_point Atmospheric temperature below which water droplets begin to condense and dew can form, ºC.
    feels_like_temperature Temperature accounting for the human perception of weather, ºC.
    humidity Humidity, %.
    precipitation_kind The kind of precipitation (Rain, Snow, Snow and Rain, None) for the last hour.
    pressure Atmospheric pressure at sea level, hPa.
    rain Rain precipitation, mm/h.
    snow Snow precipitation, mm/h.
    temperature Temperature, ºC.
    uv_index UV Index.
    visibility Average visibility, m.
    weather A human-readable description of the weather condition.
    weather_code ID of the weather condition.
    wind_bearing Wind direction, degrees (meteorological).
    wind_speed Wind speed, meter/sec.

    Details about the API are available in the OpenWeatherMap documentation.

    Action openweathermap.get_minute_forecast

    This action populates response data with a mapping of minute-by-minute precipitation forecasts (rain or snow) for the next hour.

    Note: Minute forecast is available only when the OWM integration mode is set to v3.0. The action will fail if the mode is set to current, forecast, or air_pollution.

    action: openweathermap.get_minute_forecast
target:
  entity_id:
    - weather.openweathermap
response_variable: weather_forecast

    The response data field is a mapping of forecast fields. forecast is a list of 60 forecasted precipitation levels; one for each minute of the next hour:

    Response data Description Example
    datetime The time of the forecasted conditions. 2024-10-19T18:59:00+00:00
    precipitation The precipitation amount in mm/h. 1.25

    Examples

    Example action response 
    weather.openweathermap:
  forecast:
    - datetime: "2024-10-19T18:59:00+00:00"
      precipitation: 5.46
    - datetime: "2024-10-19T19:00:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:01:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:02:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:03:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:04:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:05:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:06:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:07:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:08:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:09:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:10:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:11:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:12:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:13:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:14:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:15:00+00:00"
      precipitation: 5.62
    - datetime: "2024-10-19T19:16:00+00:00"
      precipitation: 5.79
    - datetime: "2024-10-19T19:17:00+00:00"
      precipitation: 5.96
    - datetime: "2024-10-19T19:18:00+00:00"
      precipitation: 6.14
    - datetime: "2024-10-19T19:19:00+00:00"
      precipitation: 6.31
    - datetime: "2024-10-19T19:20:00+00:00"
      precipitation: 6.48
    - datetime: "2024-10-19T19:21:00+00:00"
      precipitation: 6.68
    - datetime: "2024-10-19T19:22:00+00:00"
      precipitation: 6.89
    - datetime: "2024-10-19T19:23:00+00:00"
      precipitation: 7.09
    - datetime: "2024-10-19T19:24:00+00:00"
      precipitation: 7.29
    - datetime: "2024-10-19T19:25:00+00:00"
      precipitation: 7.49
    - datetime: "2024-10-19T19:26:00+00:00"
      precipitation: 7.72
    - datetime: "2024-10-19T19:27:00+00:00"
      precipitation: 7.95
    - datetime: "2024-10-19T19:28:00+00:00"
      precipitation: 8.18
    - datetime: "2024-10-19T19:29:00+00:00"
      precipitation: 8.42
    - datetime: "2024-10-19T19:30:00+00:00"
      precipitation: 8.65
    - datetime: "2024-10-19T19:31:00+00:00"
      precipitation: 8.65
    - datetime: "2024-10-19T19:32:00+00:00"
      precipitation: 8.65
    - datetime: "2024-10-19T19:33:00+00:00"
      precipitation: 8.65
    - datetime: "2024-10-19T19:34:00+00:00"
      precipitation: 8.65
    - datetime: "2024-10-19T19:35:00+00:00"
      precipitation: 8.65
    - datetime: "2024-10-19T19:36:00+00:00"
      precipitation: 8.91
    - datetime: "2024-10-19T19:37:00+00:00"
      precipitation: 9.18
    - datetime: "2024-10-19T19:38:00+00:00"
      precipitation: 9.45
    - datetime: "2024-10-19T19:39:00+00:00"
      precipitation: 9.72
    - datetime: "2024-10-19T19:40:00+00:00"
      precipitation: 9.98
    - datetime: "2024-10-19T19:41:00+00:00"
      precipitation: 10.29
    - datetime: "2024-10-19T19:42:00+00:00"
      precipitation: 10.6
    - datetime: "2024-10-19T19:43:00+00:00"
      precipitation: 10.91
    - datetime: "2024-10-19T19:44:00+00:00"
      precipitation: 11.22
    - datetime: "2024-10-19T19:45:00+00:00"
      precipitation: 11.53
    - datetime: "2024-10-19T19:46:00+00:00"
      precipitation: 11.89
    - datetime: "2024-10-19T19:47:00+00:00"
      precipitation: 12.24
    - datetime: "2024-10-19T19:48:00+00:00"
      precipitation: 12.6
    - datetime: "2024-10-19T19:49:00+00:00"
      precipitation: 12.96
    - datetime: "2024-10-19T19:50:00+00:00"
      precipitation: 13.31
    - datetime: "2024-10-19T19:51:00+00:00"
      precipitation: 13.31
    - datetime: "2024-10-19T19:52:00+00:00"
      precipitation: 13.31
    - datetime: "2024-10-19T19:53:00+00:00"
      precipitation: 13.31
    - datetime: "2024-10-19T19:54:00+00:00"
      precipitation: 13.31
    - datetime: "2024-10-19T19:55:00+00:00"
      precipitation: 13.31
    - datetime: "2024-10-19T19:56:00+00:00"
      precipitation: 13.73
    - datetime: "2024-10-19T19:57:00+00:00"
      precipitation: 14.14
    - datetime: "2024-10-19T19:58:00+00:00"
      precipitation: 14.55

    Supported Air Quality Sensors

    Current Air Quality Sensors

    Sensor Description
    air_quality_index Air Quality Index, where 1 = Good, 2 = Fair, 3 = Moderate, 4 = Poor, and 5 = Very Poor.
    carbon_monoxide Concentration of CO (Carbon monoxide), µg/m³.
    nitrogen_monoxide Concentration of NO (Nitrogen monoxide), µg/m³.
    nitrogen_dioxide Concentration of NO2 (Nitrogen dioxide), µg/m³.
    ozone Concentration of O3 (Ozone), µg/m³.
    sulphur_dioxide Concentration of SO2 (Sulphur dioxide), µg/m³.
    pm2_5 Concentration of PM2.5 (Fine particulate matter), µg/m³.
    pm10 Concentration of PM10 (Coarse particulate matter), µg/m³.

    More details can be found at the OpenWeatherMap Air Pollution API documentation.

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