OpenWeather provides global weather data APIs for current conditions, forecasts, historical archives, air quality, maps, and industry-specific use cases. Explore the product families below to find the API that fits your application, workflow, or business need.
Featured API
One Call API 4.0
One Call API 4.0
The BusinessAll-in-One Weather Data, One Simple Call
Access real-time weather, hourly & daily forecasts, national alerts, and historical data — through a unified timeline-based API. Whether you’re building apps, analytics, AI workflows, dashboards, and enterprise weather solutions, One Call API 4.0 is your all-purpose solution.
Current Conditions
Real-time weather conditions including temperature, humidity, wind, pressure, clouds, and more.
1-Minute Forecast
Minute-by-minute precipitation forecast for the next 60 minutes.
15-Minute Forecast Timeline
High-resolution 15-minute forecast timeline for the next 48 hours powered by the OWHL™ hyper-local model.
Hourly Weather Timeline
Explore 47+ years+ years of hourly historical weather data and up to 48 hours of forecast records through a unified weather timeline endpoint.
Daily Weather Timeline
Access long-range daily weather timelines combining 47+ years+ years of historical archive with forecasts up to 1.5 years ahead.
National Weather Alerts
Government-issued weather alerts and detailed metadata from official national meteorological agencies (e.g. NOAA, EUMETNET)