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 ...

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

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

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

THE WEEKEND AHEAD: Heading into the weekend, scattered showers and storms will continue. Highs will fall into the mid and ...

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

A Heat Advisory is in effect for all North Alabama and Middle Tennessee counties through 9:00 PM CDT. Afternoon feels-like ...

A Heat Advisory will be in effect from 10 a.m. until 8 p.m. for Chatham County. We have a couple more hot, humid days ahead ...

On the heels of the hottest day in Tampa history, 100 degrees on Sunday, Tampa International Airport (the official reporting ...