Weather APIs deliver current conditions, forecasts, historical data, and severe weather alerts for locations worldwide. Build weather dashboards, travel planners, or outdoor activity apps with accurate meteorological data.
Last verified: April 1, 2026
| Name | Description | Auth | HTTPS | CORS | Status |
|---|---|---|---|---|---|
| 7Timer! | Weather, especially for Astroweather | none | No | unknown | alive |
| AccuWeather | Weather and forecast data | apikey | No | unknown | alive |
| Aemet | Weather and forecast data from Spain | apikey | Yes | unknown | alive |
| apilayer weatherstack | Real-Time & Historical World Weather Data API | apikey | Yes | unknown | alive |
| APIXU | Weather | apikey | Yes | unknown | alive |
| AQICN | Air Quality Index Data for over 1000 cities | apikey | Yes | unknown | alive |
| AviationWeather | NOAA aviation weather forecasts and observations | none | Yes | unknown | alive |
| ColorfulClouds | Weather | apikey | Yes | yes | alive |
| Euskalmet | Meteorological data of the Basque Country | apikey | Yes | unknown | alive |
| Foreca | Weather | oauth | Yes | unknown | alive |
| HG Weather | Provides weather forecast data for cities in Brazil | apikey | Yes | yes | alive |
| Hong Kong Obervatory | Provide weather information, earthquake information, and climate data | none | Yes | unknown | alive |
| MetaWeather | Weather | none | Yes | no | dead |
| Meteorologisk Institutt | Weather and climate data | user-agent | Yes | unknown | alive |
| Micro Weather | Real time weather forecasts and historic data | apikey | Yes | unknown | alive |
| ODWeather | Weather and weather webcams | none | No | unknown | alive |
| Oikolab | 70+ years of global, hourly historical and forecast weather data from NOAA and ECMWF | apikey | Yes | yes | alive |
| Open-Meteo | Global weather forecast API for non-commercial use | none | Yes | yes | alive |
| openSenseMap | Data from Personal Weather Stations called senseBoxes | none | Yes | yes | dead |
| OpenWeatherMap | Weather | apikey | Yes | unknown | alive |
| QWeather | Location-based weather data | apikey | Yes | yes | alive |
| RainViewer | Radar data collected from different websites across the Internet | none | Yes | unknown | alive |
| Tomorrow | Weather API Powered by Proprietary Technology | apikey | Yes | unknown | alive |
| US Weather | US National Weather Service | none | Yes | yes | alive |
| Visual Crossing | Global historical and weather forecast data | apikey | Yes | yes | alive |
| weather-api | A RESTful free API to check the weather | none | Yes | no | alive |
| Weatherbit | Weather | apikey | Yes | unknown | alive |
| Weatherstack | Real-Time & Historical World Weather Data API | apikey | Yes | unknown | alive |
| Yandex.Weather | Assesses weather condition in specific locations | apikey | Yes | no | alive |
10 of these APIs require no authentication — you can start making requests immediately without signing up for an account. Just pick one from the table above, check its documentation, and send your first request.
17 APIs in this category require a free API key. This usually means creating a free account on the provider's website and copying your key from the dashboard. The process typically takes less than a minute.
Not sure where to start? Look for APIs marked as "alive" in the status column — these were recently verified as working. For browser-based projects, check that the API supports CORS.
Yes, all APIs listed on API Bouncer have a free tier. Some are completely open (no sign-up needed), while others require a free account to get an API key. Free tiers typically have rate limits — check each API's documentation for specifics.
It depends on your needs. Consider: Do you need authentication or prefer no-auth? Does your project need CORS support for browser access? How many requests will you make? Start with a no-auth API to prototype quickly, then switch to a more feature-rich option if needed.
We run periodic health checks on all listed APIs. The "Status" column shows whether each API was responding at our last check. APIs marked as "alive" were recently verified. You can also test any API yourself using curl or our guides on testing APIs.
Most free APIs allow commercial use, but terms vary by provider. Always check the specific API's terms of service. Some APIs have separate free and commercial tiers with different rate limits.
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