"coord": "lon": -122.08, "lat": 37.39 , "weather": [ "id": 800, "main": "Clear", "description": "clear sky", "icon": "01d" ], "main": "temp": 282.55, "feels_like": 281.86, "temp_min": 280.37, "temp_max": 284.26, "pressure": 1023, "humidity": 100 , "wind": "speed": 1.5, "deg": 350 , "dt": 1560350645, "sys": "country": "US", "sunrise": 1560343627, "sunset": 1560396563 , "timezone": -25200, "name": "Mountain View"
| 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:
Whether you’re building a weekend hobby project or a global logistics platform, OpenWeatherMap provides the data you need with minimal friction.
The data is collected from official meteorological services, satellite imagery, radar stations, and a network of private weather stations. The OpenWeatherMap API is not a single endpoint but a suite of products. Here are the most commonly used ones:
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.
In the world of application development, integrating real-time weather data has become a standard requirement—from fitness apps planning outdoor runs to logistics companies rerouting shipments around storms. OpenWeatherMap provides one of the most popular and robust APIs for this purpose.
