Sign up for a free API key, try the /weather endpoint in your terminal with curl , and start building something useful. The clouds are yours to forecast. ☁️ Have questions or an interesting project built with OpenWeatherMap? Share your experience in the comments below.
| API Product | Description | Typical Use Case | | :--- | :--- | :--- | | | Real-time conditions (temp, humidity, wind, pressure) plus brief descriptions (e.g., "light rain"). | Displaying a live weather widget. | | 5-Day Weather Forecast | 3-hour interval forecasts for the next 5 days (40 data points). | Trip planning, event scheduling. | | Weather Maps | Tile layers (precipitation, clouds, pressure) for use with Leaflet or Google Maps. | Building custom radar visualizations. | | Historical Weather | Archived data for specific dates or time ranges (up to 40+ years). | Climate research, analytics. | | Air Pollution API | Current, forecasted, and historical data for CO, NO2, O3, PM2.5, and PM10. | Health and outdoor activity apps. | | One Call API | A single endpoint delivering current, minute‑by‑minute (1 hour), hourly (48h), daily (7 days), and air pollution data. | Reducing API calls and simplifying code. | API Response Example (Current Weather) A typical JSON response for a city looks like this: openweathermapapi
This article explores the OpenWeatherMap API, its features, pricing, and how to integrate it into your projects. OpenWeatherMap is an online service that provides weather data, including current weather, forecasts, historical data, and weather maps. Founded in 2014, it has grown into a go-to source for developers due to its ease of use , scalability , and free tier . Sign up for a free API key, try