WeatherAds uses highest quality enterprise-grade global weather data sourced from NOAA (The National Oceanic and Atmospheric Administration) which is the US federal meteorological department of America. We are really happy with the accuracy and granularity of our weather data, which is proof checked and enhanced by our in house weather models. Thousands of enterprises, TV channels, websites and mobile apps rely on this weather data to power their businesses.

Further reading: How granular and accurate is your weather data?