An “extreme heat warning” is in place for much of the South Carolina coastal area through Monday evening. A heat index value ...

The National Weather Service in Charleston issued an “extreme heat warning” for much of the Lowcountry on Sunday and Monday.

Southeastern South Dakota is under an extreme heat warning for July 27, according to the National Weather Service. The ...

Boston and New York are among the areas under a heat warning during the upcoming work week, and "potentially life-threatening ...

The National Weather Service released an updated extreme heat warning at 12:53 p.m. on Friday in effect until 9 p.m. for ...

An extreme heat warning was issued by the National Weather Service in Mount Holly at 2:22 a.m. on Friday, July 25.

An Extreme Heat Warning has been issued for the Yankton area Sunday for noon-8 p.m., with dangerously hot conditions expected ...

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

At least 100 Americans are on alert for dangerous heat and humidity -- stretching from Texas to Maine -- on Friday.