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

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

The National Weather Service issued heat advisories for a large swath of the East Coast from central Florida to Virginia ...

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

The National Weather Service in Paducah has extended its dangerous heat warning, now forecasting extreme heat conditions to last through at least Wednesday. The updated advisory urges residents across ...

An intense heat wave threatens millions of people across the Southeast with temperatures reaching 115 degrees through midweek ...

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

Heat advisories are in effect from Monday to Wednesday across the Northeast, the National Weather Service said.

As dangerous highs continue in central North Carolina, and heat index temperatures climb past 110 degrees all weekend, 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.

Orlando heat wave triggers Heat Advisory with temperatures reaching mid to upper 90's and heat index up to 110°F.

The heat will be most severe along and southeast of the I-99/US-220 corridor, where heat index values are likely to exceed ...