June 20 marks the first official day of summer, with millions of Americans already under heat warnings. See cities hotter ...

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

The National Weather Service called the forecast for above-average temperatures "the first significant heat wave this season.

Within those constraints, finding ways to stay hydrated and lower your body temperature are paramount. You can do this by ...

A heat wave will bring temperatures pushing 100 to Ohio; it will feel hotter than that. Forecast, difference between heat ...

In total, Detroit's 13 recreation centers are all places residents can go to get a cool drink of water and escape the extreme ...

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

A heat wave with highs between 95 and 100 degrees is likely to stretch across the Midwest to the East Coast. New England is ...

The NYISO says even with the sizzling temps, no records will be broken. The highest summer demand for power happened more ...

A “significant and extremely dangerous heat wave” is expected to send temperatures soaring across much of the United States ...

Record-breaking heat indices — a combination of temperatures and humidity to determine how heat really feels to the body — ...

The city of Flint is activating seven cooling stations in advance of what’s expected to be dangerously hot weather this ...