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

What is the heat index today? Residents can use the NWS Heat Index Calculator to calculate what the heat index is locally. In addition, there is the Heat Index Chart with a wider range of ...

Weather experts explain the science behind "feels like" temperatures as the region experiences dangerous heat conditions ...

Heat doesn’t just mean canceled events. It also poses a health risk. If you can’t afford to cool the whole house, make a ...

The National Oceanic and Atmospheric Administration says people should start exercising “caution” when the heat index reaches ...

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

Numerous cities along the East Coast broke or tied heat records as temperatures soared to triple digits on Tuesday.

A heat wave is currently affecting about 160 million people, according to the National Weather Service. Here's which states ...

Drink plenty of water. Limit outdoor activities during the hottest parts of the day (usually 10 a.m. – 4 p.m.). A heat watch ...

Two days of stifling heat await New Jersey on Monday and Tuesday with temperatures rising as high as 100 degrees and ...

It's because of something called the heat index. The heat index measures what the air temperature combined with the level of humidity feels like to the human body, the National Weather Service says.