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

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 ...

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 ...

Jacksonville is under an extreme heat warning until 7 p.m., with temperatures expected to climb into the hundreds and a feels ...

It's a hot summer night. Overnight lows will offer little relief as temperatures won't dip out of the lower to middle 70s.

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

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

Heat index values will hover around 110 degrees this afternoon, but scattered showers and thunderstorms will be in store ...

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 ...

More extreme heat is expected to persist in Baltimore on Wednesday, with temperatures approaching 97 degrees and a heat index exceeding 100, before a gradual cooling trend begins later in the week.

Meteorologist Alena Lee says that Wednesday will be dry and rain-free throughout the afternoon and into the evening.

Brooke Hogan Addresses Rumors She & Dad Hulk ‘Fought' Before His Death: ‘I Felt a Disconnect' 8.8-magnitude earthquake sends ...