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

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

An extreme heat warning and an extreme heat watch were issued by the National Weather Service in Jacksonville for July 28 and ...

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

Triple digit heat index with weekend rain ...

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

Extreme Heat Warning in Memphis with heat index up to 110°F, affecting surrounding areas until 8 PM CDT Thursday.

As we head into the weekend, Southeast Louisiana remains stuck in a steamy and stormy pattern, with daily chances for showers ...

South Florida residents are encouraged to take the necessary precautions to avoid heat exhaustion and heat illness.

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 ...

THE WEEKEND AHEAD: Expect mostly cloudy days with scattered storms. Temperatures begin to trend down into the 80s. Highs will ...