Weather & Environment – Public APIs Directory

About Weather & Environment

Public weather/climate APIs with request caps and rate-limit headers.

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Weather & Environment

OpenWeather — Free tier; per‑minute/day caps
WeatherAPI.com — Requests per key per day
NOAA NWS API — US forecasts; fair use guidance
Meteostat — Historical weather; daily quotas
Open‑Meteo — Free weather forecasts; limits documented
Stormglass — Marine weather; request caps
Visual Crossing — Weather & climate datasets
Tomorrow.io — Micro‑forecasts; quotas
AirNow — Air quality; request limits
OpenAQ — Global air quality API
Windy API — Weather layers; quotas