A bout half the country is under active heat advisories on Monday, affecting more than 198 million Americans, according to ...

The Centers for Disease Control and Prevention (CDC) says that extreme heat can lead to heat-related illnesses, especially ...

Multiple states are under extreme heat warnings, advisories or watches on July 23, according to the National Weather Service.

Millions of Americans are under weather advisories this week. See which major cities have heat, flood or storm advisories.

A heat dome​ is trapping over 90 million Americans in extreme temperatures this week with the National Weather Service​ ...

The National Weather Service urged people to avoid travel if a flash flood warning was in place for their area.