A massive heat dome will be long-lasting and unforgiving across large areas of the United States in the coming weeks, with ...

Heat index values will top 110 degrees in parts of the country Wednesday, while South Texas could see its highest ...

It’s the hottest time of the year in the United States and another heat dome is about to make millions of people feel every bit of it.

Temperatures are expected to reach the upper 90s, with heat indices exceeding 100 degrees in major cities like St. Louis, Kansas City, and Oklahoma City.

Some cities could notch their highest temperatures of the year as heat builds from the South to the Midwest this week.

A long stretch of blistering heat is on the way for portions of the Plains and southern United States, while breaks from the ...

The Pensacola area is under a heat advisory for the second day in a row. A cluster of showers and thunderstorms will offer ...

Learn about U.S. heat advisories, what they mean for your safety, and the meteorological conditions like heat domes and ...

Warm, humid conditions across the central and eastern United States have made the region especially vulnerable to flash ...

Hot and humid conditions in the Midwest will be exacerbated this week by what experts describe as a “corn sweat.” ...

Extreme humidity and triple-digit temperatures are affecting around 250 million people across the United States. Here's the ...

Three Democratic lawmakers have proposed legislation to classify extreme heat as a disaster, which would allow federal ...