Free alternatives to OpenWeatherMap
5 services, checked weekly
OpenWeatherMap is one of the best-known weather APIs; its free plan needs a key and has limits per minute and per month. These free weather APIs need no key at all, and several come straight from national weather services.
| Service | Category | API key | Formats | Free use |
|---|---|---|---|---|
| Open-Meteo | Weather forecasts | Not needed | JSON | Free for non-commercial use; commercial use needs a paid plan. |
| MET Norway Weather API | Weather forecasts | Not needed | JSON | Free, also for commercial use, under an open licence that asks for attribution; send a User-Agent that identifies your app and cache the results. |
| National Weather Service API | Weather forecasts | Not needed | JSON | Free and no key needed; send a User-Agent that identifies your app. |
| 7Timer! | Weather forecasts | Not needed | JSON, XML | Free, no key needed; a simple, long-running service without uptime guarantee. |
| wttr.in | Weather forecasts | Not needed | – | Free and open source, no key needed. |