Forecast Check

Forecast Check — Privacy Policy

Last updated: October 4, 2026

Forecast Check is a browser extension that shows weather forecasts from several weather models and how accurate each model has been near you.

What the extension stores

• The place you choose — its name and coordinates, either from the city search or, if you click “Use my location”, from your browser’s location service.
• Your settings — units, models, toolbar and alert options.
• The latest forecast and accuracy results — so the extension opens instantly.

All of this is kept in your browser’s extension storage. Settings may sync between your own browsers through your browser’s sync, if you have it turned on. We have no server and no copy of this data.

What is sent, and to whom

To get the weather, the extension sends requests directly from your browser to:

Service	What it receives	Why
Open-Meteo (api.open-meteo.com, previous-runs-api.open-meteo.com)	Coordinates of your place or of the nearest weather station	Forecasts and past forecasts
Open-Meteo geocoding (geocoding-api.open-meteo.com)	The text you type in the city search	Finding places
NOAA Aviation Weather Center (aviationweather.gov)	An area around your place and the code of the nearest airport station	Weather station observations

Like any website, these services see your IP address. Their own privacy policies apply: Open-Meteo, NOAA.

What we don’t do

• No accounts, no analytics, no ads, no tracking.
• We don’t sell or share your data, and we don’t use it for anything other than showing the weather.

Your choices

Remove the extension, or clear its data in your browser’s extension settings, to delete everything it stored.

Contact

Questions: sazonoff@aspanlabs.com