Forget about any worries of tropical weather today. Instead pay attention to the heat: temperatures in Jacksonville could ...

The heat index could get as high as 111 in South Florida, with the strongest heat expected along the southern Gulf Coast.

Temperature are at an all-time high right now, keep yourself safe by learning at what temperature is it too hot to exercise outdoors.

The WBRC First Alert Weather Team has declared several First Alert Weather Days because of the heat index, but what is it exactly? And how does it affect your family?

The latest heat wave might be causing bigger problems than you realize. Here's what you need to know before boarding your ...

Summer is just getting started, and millions of people are under heat advisories as a major heat wave spreads across the eastern U.S.

What is the “wet bulb effect”? The term “wet bulb effect” or “wet bulb temperature” refers to how effectively the body can cool down in high heat and high humidity conditions.

Highs will regularly reach into the lower 90s through the rest of this week. High humidity could even bring heat indices into the triple digits through Wednesday.

For many people, summer is their favorite time of year. However, summer also brings the risk of dangerous heat waves.

Heat risk isn’t just about temperature – humidity also increases the risk ... index can be as much as 15 F higher than the heat index chart indicates. A more sophisticated measurement of heat effects ...

An 'extreme heat watch' is in effect as the heat index is expected to skyrocket. Here's timing, updated heat index values, more.