Exercising outside in high temps can be a health hazard. Here's how to read your local index, according to a doctor, so you can stay safe.

Michigan's heat wave this week will feel even warmer because of high humidity. Here's how the heat index works.

"It's not the heat, it's the humidity." Actually, it's both, and that's where the National Weather Service's heat index comes in. Also known as the apparent temperature, the heat index is a number ...

NASHVILLE, Tenn. (WSMV) - Summer heat can be uncomfortable, but when humidity is added to the mix, it can become dangerous. That’s where the heat index comes in. The heat index is often called the ...

The metric of how hot the air actually feels has roots in a 1979 journal paper called “The Assessment of Sultriness.” By Andy Newman In recent days, you may have seen or heard many mentions of a ...

*Millions of Americans are facing dangerous heat and humidity going into the July Fourth holiday as a major heat wave spreads ...

A public health expert has revealed some of the key warning signs and ways to keep cool when the heat and humidity get too high ...

Wednesday and Thursday, June 10-11, are forecast to be the hottest days this week in Michigan with 90-degree highs that will make it feel like you're stepping into 100-degree weather. Weather ...

Tropical-like air will linger in Michigan this week causing many to stay indoors. To keep up with the temperature forecasts, you will need to know how the heat index works. Weather officials include ...