What is heat index and how does it affect how stifling excessive heat feels?

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

New York state has entered its first heat wave of the summer - with highs expected to soar into the upper 90s and even past ...

Extremely dangerous heat, coupled with humidity, could result in heat index readings of 100 to 115 degrees from the Midwest ...

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

As summer temperatures rise, dairy cows are at greater risk for heat stress. Heat-stressed cows suffer from reduced dry matter intake, reducing milk production. Farmers may also notice reduced ...

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 ...

With Independence Day coming up, fireworks stands are already popping up along roadsides and lining store shelves, a familiar sign of summer celebrations.Before ...

Whether a summer day is great or awful often comes down to the humidity.

LOUISVILLE, Ky. — Expect oppressive heat to smother Kentucky and southern Indiana for the next few days. A persistent heat wave has brought high temperatures, humidity and a heat index that's soaring ...

With the Louisville-area facing a prolonged heat wave, it’s important to take care of yourself and check on the people around ...