A multiday heat wave is bringing high temperatures and health risks from the Midwest to the Northeast, prompting warnings and ...

St. Louis, Chicago and Des Moines were among the cities that saw heat indexes hit triple digits on Saturday, with the East ...

"A dangerous, widespread heat wave will bake the central and eastern U.S., bringing the hottest temperatures of the year and ...

More than 150 million Americans are under the highest-level extreme heat alerts during a wave of above-average temperatures.

Widespread 90s, even perhaps a few 100s, will bake much of the eastern two-thirds of the country in a dangerous heat wave.

Meteorologists are warning of a dangerous heat wave that is going to grip the Midwest and Northeast regions of the U.S. this ...

The first heat wave of summer could bring punishing humidity and triple-digit temperatures to many states east of the Rocky ...

A heat wave is moving in, with over 100 million people from the Midwest to the Northeast on alert for life-threatening heat ...

More than 37 million Americans are under heat advisories across the U.S., according to the National Weather Service. Here's ...

Temps may crack 100 for the first time in 13 years. The temperature made it to 91 on Saturday in Philly, and by the end of ...

A Midwest heat dome is driving high temperatures and high humidity that will push the Chicago heat index into the triple ...

Meteorologists say a phenomenon known as a heat dome, a large area of high pressure in the upper atmosphere that traps heat ...