The heat is no joke and this year, it's impacting a large portion of the U.S. Here's what to know about heat stroke, ...

As a heat wave hits multiple U.S. states, some areas are have been placed under extreme heat watches and warnings.

Philadelphia is under an extreme heat warning with heat index values up to 105 degrees, advising residents to stay cool and ...

The National Weather Service has issued a severe thunderstorm warning for parts of Franklin, Fairfield and Licking counties.

The NWS has issued an extreme heat warning for central North Carolina, with heat index values possibly reaching 112 degrees, ...

Tuesday could bring a higher heat index, with real-feel temperatures up to 111 degrees. Here's when the region could see ...

Harford County is opening 11 cooling centers for those looking for a reprieve from the extreme heat in Maryland this week.

An "extreme heat warning" has officially been issued for nine major U.S. cities on Monday, June 23. The National Weather ...

An "extreme" heat warning has been issued for 16 U.S. states on Tuesday morning. The National Weather Service is warning 16 U ...

It's becoming dangerously hot, meteorologists warn. An extreme heat warning was issued by the National Weather Service in Mount Holly at 11:03 a.m. Monday, June 23. This warning applies to Berks ...

It'll be very hot, but what conditions are required for the extreme heat warning that much of New Hampshire is under? Matt Hoenig breaks it all down.

The National Weather Service has issued an extreme heat warning for most of Southern New England with the temperature ...