Weather API Documentation

Leverage our powerful Weather API to do amazing things!

With our Weather API you can retrieve current weather observations from over 40,000 active weather stations, historical weather data for the past 10 years from our archive of more than 120,000 stations, and highly localized weather forecasts for any point on the globe using the world's most trusted weather models!

You can look up weather data by many methods including:

  • Latitude/longitude
  • City name
  • City ID
  • Weather station ID
  • Airport ICAO code
  • IP address
  • Postal (zip) code for any country in the world
How do I get access?
  • Sign up for an account.
  • Use the API key provided in the account dashboard.
  • Upgrade or downgrade your key anytime by signing in, and selecting your plan via the dashboard.
  • See pricing for weather API plan options.
Current Weather API
Forecast API (16 day / daily)
  • 16 day forecasts for any location in the world
  • Forecast data from the world's most accurate weather models including the GFS 13km, ECMWF, DWD 6.5km ICON-Europe, and NOAA 3km HRRR
  • Over 22 weather fields returned, including: temperature, precipitation, snowfall/snow depth, solar irradiance, UV index, and weather conditions
Cooling + Heating Degree Day API
  • Historical weather data for any point in the world relevent to energy sectors
  • Historical data sourced from over 38,000 hourly reporting weather stations
  • Returns many energy sector specific fields such as cooling degree days, heating degree days, wind speed, humidity, and precipitation
Historical Weather API (daily)
  • Daily historical weather data for any location in the world
  • Historical data sourced from over 120,000 weather stations reporting daily
  • Over 25 weather fields returned, including: min/max temperature, precipitation, snowfall/snow depth, UV index, solar irradiance, and wind speed
Forecast API (48 hour)
  • 48 hour forecasts for any location in the world
  • Forecast data from the world's most accurate weather models including the GFS 13km, ECMWF, DWD 6.5km ICON-Europe, and the NOAA 3km HRRR
  • Over 22 weather fields returned, including: temperature, precipitation, snowfall/snow depth, solar irradiance, UV index, and weather conditions
Solar Irradiance API
  • Historical weather data for any point in the world relevent to energy sectors
  • Historical data sourced from over 38,000 hourly weather stations
  • Returns many energy specific fields such as clear sky global horizontal irradiance (GHI), direct normal irradiance (DNI), and diffuse horizontal irradiance (DHI)
Historical Weather API (hourly)
  • Daily historical weather data for any location in the world
  • Hourly historical data sourced from over 38,000 weather stations
  • Over 20 weather fields returned, including: temperature, precipitation, estimated snowfall, UV index, solar irradiance, weather conditions, and wind speed
Forecast API (5 day)
  • 5 day / 3-hour interval forecasts for any location in the world
  • Forecast data from the world's most accurate weather models including the GFS 13km, ECMWF, DWD 6.5km ICON-Europe, and the NOAA 3km HRRR
  • Over 22 weather fields returned, including: temperature, precipitation, snowfall/snow depth, solar irradiance, UV index, and weather conditions
Historical Weather API (Bulk)
  • Query for more than 1 year of historical weather data per request
  • Available to Advanced+ and Enterprise plan users only
  • Daily or Hourly historical weather data for any location in the world
  • Historical data sourced from over 38,000 (hourly), and 120,000 (daily) weather stations
  • Over 25 weather fields returned, including: min/max temperature, precipitation, snowfall/snow depth, UV index, solar irradiance, and wind speed
Additional Documentation, Metadata & API's: