A record-smashing heat wave broiled the U.S. East for another day Wednesday, even as thermometers were forecast to soon ...

Sweltering heat happens every summer, but to get close to the bar of a state's all-time hottest temperature usually takes a heat wave that's on another level.

A county-wide heat mapping effort found dramatic differences in temperature across Clark County, with more developed areas experiencing hotter conditions and greater health risks during heat events.

More than 125 million Americans are under the highest level of extreme heat alerts during a wave of above-average ...

More than 125 million Americans are under the highest level of extreme heat alerts during a wave of above-average ...

Nearly 160 million people are under heat alerts from eastern Texas to Maine, as temperatures are forecasted to be as much as ...

Temps are soaring in cities across the Atlantic coast, where some cities are reaching 100 degrees with heat indexes ...

Ohio braces for a heatwave with temperatures soaring into the mid-90s. Heat Index to exceed 100 as hot and humid conditions ...

For 150 million people across the United States, humidity surged to levels higher than Miami late Monday. Maps show where.

Several of Mount Rainier’s glaciers are already gone, experts say, and others aren’t far behind. The News Tribune asked what ...

A heat wave is currently affecting about 160 million people, according to the National Weather Service. Here's which states ...

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