Today's extreme heat for the World Cup match between Portugal and Croatia is expected exceed world soccer union guidelines based on the "wet bulb" temperature. That's already happened for a number of ...

Summer is here, and heat and humidity have arrived.

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

The oppressive air mass will likely linger into Friday, though showers could bring some some relief.

As summer temperatures rise, dairy cows are at greater risk for heat stress. Heat-stressed cows suffer from reduced dry ...

We are in for a stretch of sweltering weather as high temperatures and humidity settle in.

Officials warn the prolonged heat significantly increases the risk of heat-related illness, especially for those spending ...

The heat rolls on! Yesterday was hot, but today is the real deal. Yesterday felt more like a hot summer day you get a ...

The heat index shows how humidity makes hot days feel hotter, and why direct sun can push dangerous conditions even higher.

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.