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 ...

Jacksonville, North, Northeast Florida: Dangerous heat today, with heat index of 108 to 115. Extreme heat warning and heat ...

Knowing the difference between heat exhaustion and heat stroke could be the key to saving someone’s life. Here’s what you ...

At 12:11 a.m. on Tuesday, the National Weather Service issued an extreme heat warning valid between 11 a.m. and 9 p.m. for ...

The National Weather Service released an extreme heat warning at 2:32 p.m. on Tuesday in effect until 9 p.m. for Marion, ...

Humidity doesn’t just make you feel sticky and uncomfortable – it also creates extra dangerous conditions on hot days.

San Antonians, get ready for a classic Texas weather toss-up this weekend with a little bit of rain, a lot of heat, and some ...

Central Florida is under a heat advisory on Friday, with temperatures expected to reach a heat index of 104 to 109 degrees.

If you are living in one of many areas of the U.S. currently experiencing a heat wave, your outdoor thermometer may say it's ...

Storms pop up in the coastal areas first and then are possible inland through late afternoon and early evening. The primary ...

Orlando faces dangerously high heat with indices up to 107°F and potential for strong storms, as per the National Weather Service.

The National Weather Service predicts scattered thunderstorms and high heat in Tampa, Florida, with a heat index up to 106°F ...