The combination of hot temperatures and very muggy weather will create dangerous conditions for outdoor activities each afternoon through midweek.

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 ...

The top heat index in Washington on a sultry Tuesday appeared to be 103. The heat index, the “feels-like” temperature, ...

Omaha's Weather Leader has deemed Tuesday a severe weather day with dangerous heat sticking around and strong storm potential ...

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

Tampa reached another milestone on Tuesday afternoon, reaching an all-time record heat index of 119° at around 2:30 p.m.

SAVANNAH, Ga. (AP) — Residents in the Southeast U.S. are no strangers to heat in the summertime. But this week's sweltering hot weather set at least one record and has forecasters urging residents to ...

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

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

The National Weather Service has issued a three-day heat advisory affecting nearly every county in the state through ...

Central Florida faces a sweltering night Monday with lows near 80 degrees and heat index values still in the 90s, followed by ...

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 ...