2025.5.1
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Tomorrow.io

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

Obtain an API key

You can obtain a free API key by signing up with Tomorrow.io. The integration assumes that your API key is associated with a free Tomorrow.io account. Free accounts include a limited number of daily API requests and the number of daily API requests included varies by account. Login to Tomorrow.io to view the number of daily API requests included with your account.

The refresh interval defaults to a time period that is compatible with an account limited to 100 daily API requests and this integration should use around 90% of the available daily requests.

When using a free account, the information provided by Tomorrow.io is limited to the Core layer. It does not include the Air Quality layer or other layers. A paid Tomorrow.io account is required to retrieve those layers.

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

Configuration

To add the Tomorrow.io service 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 Tomorrow.io.

  • Follow the instructions on screen to complete the setup.