About half the country is under active heat advisories again on Tuesday, affecting more than 168 million Americans, according ...

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

More than 100 million Americans are under heat alerts as the extreme temperatures that have smothered the Midwest this week ...

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

The National Weather Service has warned of "searing heat and oppressive humidity that occurs during the 'dog days of summer'.

Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

Damaging and potentially destructive thunderstorms are set to roar through the northern Plains on Monday, fueled by intense July heat and humidity.

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

The National Weather Service (NWS) extended a Heat Advisory across parts of west central Florida and northeast Florida on ...