Summer arrived hot and heavy this week, and it's not going away anytime soon. Why it matters: Extreme heat is the top weather ...

Triple-digit heat warnings have been in place across the Northeast for the past 24 hours and are expected to stay in place ...

The National Weather Service has issued red flag warnings to Utah and Colorado where low humidity combined with strong winds ...

A heat advisory is in effect for much of Arkansas through the end of the week as above-average temperatures hit the Natural ...

Zee emphasized her comments in the post’s caption, writing, “Heat index isn’t new. It isn’t ‘made for tv’… it’s made for humans and safety. That’s why we show it. The National Weather Service bases ...

Sometimes the temperature outside feels warmer than it is, and there's a reason. Here's a breakdown of the heat index.

Our area continues to be under a risk of extreme heat according to forecasters, who are using a new classification tool.

Basically, when the body sweats, the perspiration evaporates, cooling the body. When the humidity is high, the sweat doesn't ...

The Columbia area will be under a heat advisory on June 24 from 1 to 8 p.m. as temperatures are expected to reach dangerous ...

As the National Weather Service this week has issued a heat advisory for Middle Tennessee, the Tennessee Valley Authority is asking customers to reduce their energy usage.

An "extreme" heat warning has been issued for 16 U.S. states on Tuesday morning. The National Weather Service is warning 16 U ...

Extreme heat warning have been issued for much of Massachusetts as temperatures are expected to break records.