More than 130 million Americans in southern and Great Plains states were under moderate to severe heat risk over the weekend

A heat wave will blast a large swath of the United States this week. The National Weather Service says temperatures rising ahead of the July 4th holiday will feel hotter because…

Millions across the central and eastern U.S. could face days of triple-digit heat index values.

A heat wave will blast the eastern United States this week

Sweltering conditions are expected to last through the weekend