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: November 12, 2026
| Name | Description | Auth | HTTPS | CORS | Uptime (30 days) |
|---|---|---|---|---|---|
| 7Timer! | Weather, especially for Astroweather | none | No | unknown | 100% (5 checks) |
| AccuWeather | Weather and forecast data | apikey | No | unknown | 100% (5 checks) |
| Aemet | Weather and forecast data from Spain | apikey | Yes | unknown | 100% (5 checks) |
| apilayer weatherstack | Real-Time & Historical World Weather Data API | apikey | Yes | unknown | 100% (5 checks) |
| APIXU | Weather | apikey | Yes | unknown | 100% (5 checks) |
| AQICN | Air Quality Index Data for over 1000 cities | apikey | Yes | unknown | 100% (5 checks) |
| AviationWeather | NOAA aviation weather forecasts and observations | none | Yes | unknown | 100% (5 checks) |
| ColorfulClouds | Weather | apikey | Yes | yes | 100% (5 checks) |
| Data Commons | Open source initiative from Google. Global disaster events and statistics data | apikey | Yes | unknown | 80.0% (5 checks) |
| Euskalmet | Meteorological data of the Basque Country | apikey | Yes | unknown | 100% (5 checks) |
| FMI Open Data | Finnish weather, sea, climate and radar observations via open WFS | none | Yes | yes | 100% (5 checks) |
| Foreca | Weather | oauth | Yes | unknown | 100% (5 checks) |
| GISTDA | Thailand natural disaster information | apikey | Yes | unknown | 100% (5 checks) |
| GribStream | Global weather forecast API for any use. Leverage the NBM and GFS models. Great for bulk pulls | apikey | Yes | unknown | 100% (5 checks) |
| Hail History | Radar-detected hail history for any US address from NOAA NEXRAD Level-III hail detections, by year | none | Yes | yes | 100% (5 checks) |
| HG Weather | Provides weather forecast data for cities in Brazil | apikey | Yes | yes | 100% (5 checks) |
| Hong Kong Obervatory | Provide weather information, earthquake information, and climate data | none | Yes | unknown | 100% (5 checks) |
| IPMA | Portuguese weather and climate data | none | Yes | unknown | 100% (5 checks) |
| KNMI | Dutch weather, radar and climate data | apikey | Yes | unknown | 100% (5 checks) |
| Korea Meteorological Administration | Weather and climate data from KMA | apikey | Yes | unknown | 100% (5 checks) |
| Met Office DataHub | UK weather forecasts and climate data | apikey | Yes | unknown | 100% (5 checks) |
| Met Office DataPoint | Weather data for the UK | apikey | Yes | unknown | 100% (5 checks) |
| Meteoblue | Global weather data with 100+ weather variables, 14 days ahead and 4 days of history data. | apikey | Yes | yes | 100% (5 checks) |
| Meteorologisk Institutt | Weather and climate data | user-agent | Yes | unknown | 100% (5 checks) |
| Météo-France | French weather forecasts and alerts | apikey | Yes | unknown | 100% (5 checks) |
| NASA POWER | Global solar and weather data for energy and agriculture | none | Yes | yes | 100% (5 checks) |
| NOAA Climate Data Online | Historical daily and monthly weather observations from NOAA's archive of US and global stations. Free token by email. | apikey | Yes | unknown | 100% (3 checks) |
| NOAA CO-OPS | US coastal tides, water levels, currents and meteorological observations | none | Yes | unknown | 100% (5 checks) |
| Oikolab | 70+ years of global, hourly historical and forecast weather data from NOAA and ECMWF | apikey | Yes | yes | 100% (5 checks) |
| Open-Meteo | Global weather forecast API for non-commercial use | none | Yes | yes | 100% (5 checks) |
| Open-Meteo Ensemble | Weather ensemble forecasts from multiple models | none | Yes | yes | 100% (5 checks) |
| openSenseMap | Data from Personal Weather Stations called senseBoxes | none | Yes | yes | 100% (5 checks) |
| OpenWeatherMap | Weather | apikey | Yes | unknown | 100% (5 checks) |
| Pirate Weather | Free weather API with forecast data similar to Dark Sky | none | Yes | yes | 80.0% (5 checks) |
| QWeather | Location-based weather data | apikey | Yes | yes | 100% (5 checks) |
| Rainbow Weather | Global real-time nowcasting API powered by radar + satellite fusion | apikey | Yes | unknown | 100% (5 checks) |
| RainViewer | Radar data collected from different websites across the Internet | none | Yes | unknown | 100% (5 checks) |
| Terrace Weather | Terrace open/closed verdict for restaurants, from the weather forecast | none | Yes | yes | 100% (5 checks) |
| Tomorrow | Weather API Powered by Proprietary Technology | apikey | Yes | unknown | 100% (5 checks) |
| US Weather | US National Weather Service | none | Yes | yes | 100% (5 checks) |
| Veabird | Beach (sargassum, waves, hurricanes) and ski snow forecasts for 1,900+ resorts, no key | none | Yes | yes | 100% (5 checks) |
| Visual Crossing | Global historical and weather forecast data | apikey | Yes | yes | 100% (5 checks) |
| weather-api | A RESTful free API to check the weather | none | Yes | no | 100% (5 checks) |
| Weatherbit | Weather | apikey | Yes | unknown | 100% (5 checks) |
| Weatherstack | Real-Time & Historical World Weather Data API | apikey | Yes | unknown | 100% (5 checks) |
| WeatherTotals | Measured US snow, rain, hail and aurora totals by state and city | none | Yes | yes | 100% (5 checks) |
| World Time & Weather | Current weather, local time, UTC offset and DST rules for 400 cities as static JSON | none | Yes | yes | 100% (5 checks) |
| wttr.in | Weather in your terminal, supports JSON output | none | Yes | yes | 100% (5 checks) |
| Yandex.Weather | Assesses weather condition in specific locations | apikey | Yes | no | 100% (5 checks) |
20 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.
27 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? Check the uptime column: it shows how often each API's documentation responded to our daily checks over the last 30 days, and the dot shows whether it responded at the latest check. 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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