A dangerous heat wave continues to scorch a large part of the United States, with more than 130 million people under extreme ...

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 ...

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

Orlando anticipates extreme heat with indices reaching 107 degrees, frequent lightning, and possible robust thunderstorms.

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

Monday: A 40 percent chance of showers and thunderstorms after 2 pm. Sunny, with a high near 93. Heat index values as high as 109.

While the actual temperature will reach 93 today, the “feels-like” heat index temperature is predicted to reach 107 in West ...

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