South Florida has been under a heat advisory for a weeklong stretch, according to the National Weather Service in Miami. The ...

Temperatures and humidity will continue to climb as we make our way through the upcoming week. By Thursday and Friday, high ...

Warm and muggy air is in place. For the remainder of the afternoon, more clouds are expected, with only an isolated storm ...

A heat dome building on the western side of the United States may break records this week, surging temperatures to 119 degrees in California.

Tomorrow: Some clouds in the morning will give way to mainly sunny skies for the afternoon. A stray shower or thunderstorm is ...

The BriefAn Air Quality Alert is in effect until midnight Wednesday night for the following counties: McHenry, Lake (IL), ...

The heat index, also known as the "apparent temperature," depicts how it actually feels outside by factoring in the moisture ...

Houston faces oppressive heat with index values peaking at 102-106 degrees, prompting health safety advisories.

The heat index is a measure of how hot it really feels on your body when relative humidity is factored in with the actual air ...