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

On Tuesday at 10:35 a.m. a heat advisory was issued by the National Weather Service valid from 9 p.m. until Wednesday 9 p.m.

NWS issues a heat advisory in Knoxville with a heat index up to 107 degrees, warning of heat illnesses and potential ...

The National Weather Service has issued a heat advisory on July 28 as feels-like temperatures break 100 degrees.

Monday’s heat advisory is set to expire at 8 p.m. The advisory cautioned heat index values of up to 109 degrees.

The National Weather Service has issued a heat advisory for Rhode Island and other parts of Southern New England.

Oklahoma City is under a heat advisory with temperatures feeling like 104 degrees, and residents are advised to stay cool and ...

"Cooler" weather is on the way, with highs starting to taper off Wednesday into the weekend, but temperatures will still be ...