Millions rely on WeatherBug for the best forecasts, the fastest alerts and more.

Welcome to WeatherBug. We operate the world's largest weather and climate sensor network. That means observations and forecasts for 2.6 million cities, real-time data and the most advanced warnings to severe weather!

Located at thousands of WeatherBug Schools, sports stadiums, parks, TV stations, town halls, firehouses and other places across the U.S. and beyond, our network -- plus National Weather Service and the World Meteorological Organization sensors -- puts the power of the largest commercial-grade weather and climate network at your fingertips.

Know before. Turn to us for real-time lightning alerts and the fastest severe weather notifications.

Our apps have won the trust of consumers, bloggers and experts everywhere. We've been recognized as the Best Weather App Ever, and won the Tabby Award for Best Mobile Weather App, a W3 Award, an APPY -- and more.