The ClimaCell integration allows you to obtain weather, air quality, pollen, and fire information from the ClimaCell API.

Obtain an API key

You can obtain a free API key by signing up with ClimaCell.

The integration will automatically set the refresh interval based on the number of ClimaCell integrations that are using the same API key for a given Home Assistant instance. The integration currently assumes you are using a free account so the max requests per day is 500 (the refresh interval is calculated such that you should only use up around 90% of the quota). If you want to use a paid account to increase the number of max requests and increase the update frequency, please open a Home Assistant issue for the integration.

Supported Forecast Types

Forecast Type Description
nowcast Up to the 1 minute predictions. Supports 300 minutes or a max of 30 forecasts depending on the chosen timestep
hourly Hourly forecasts for the next 24 hours
daily Daily forecasts for the next 14 days


Adding ClimaCell to your Home Assistant instance can be done via the user interface, by using this My button:

Manual configuration steps