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

The storms could be accompanied by hail or damaging winds and have the highest chance of forming on Tuesday evening.

A huge chunk of Florida is under an extreme heat warning today, July 29, as temperatures and the heat index soar. Some areas could see the heat index hit 115 today as above-average high temperatures ...

The National Hurricane Center is now tracking four tropical waves with the development of a new one in the Caribbean.

On Saturday at 3:02 p.m. the National Weather Service reported an updated air quality alert in effect until Sunday at ...

About half the country is under active heat advisories on Monday, affecting more than 198 million Americans, according to the National Weather Service . The extreme heat is expected in the Midwest, ...

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

The National Weather Service reported an air quality alert at 1:14 p.m. on Saturday in effect until Sunday at 1:15 p.m. for ...

The Chicago area has felt less of an impact from the Trump administration’s National Weather Service cuts than offices in the Quad Cities and downstate Lincoln.

National Weather Service forecasters also warned of a "handful" of strong to severe thunderstorms on Friday afternoon.

"Dangerous heat" is forecast Monday, July 28, across parts of Florida, with a heat index expected across Northeast Florida ranging from 108 to 115, according to the National Weather Service ...

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