Forecasters warn of 100 to 105 degree heat index values through Tuesday, with potential storms offering limited relief.

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

A heat advisory has been issued for Monday, Tuesday and Wednesday for heat indices forecasted to reach 100 degrees for the ...

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.

Rising temperatures into the 90s and stifling humidity have prompted heat advisories from Monday morning through Wednesday ...

Sunday will top out in the upper 90s across the Front Range. The record for the day is 98 degrees, set back in 1964. Monday ...

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

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

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

Nashville's NWS issues a Heat Advisory warning of extreme temperatures and high humidity until Wednesday evening.