ABC News Meteorologist Somara Theodore reports on the life-threatening heat wave with more that 130 million Americans under ...

Much of the U.S. is under extreme heat warnings or advisories while New York, Philadelphia and Washington could feel like 100 degrees or more.

In many areas of the state, extreme heat warnings have already been issued for the upcoming weekend. Here's what to know.

The heat index could reach more than 100 degrees on Monday and Tuesday, according to the National Weather Service.

Central Florida is currently experiencing a dangerous heat wave, with temperatures expected to challenge record highs in ...

After an unsettled weekend, dry, hot, humid conditions will persist through Tuesday, before rain and cooler temperatures ...