Today's extreme heat for the World Cup match between Portugal and Croatia is expected exceed world soccer union guidelines ...

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.

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.

Delaware will face dangerously high temperatures and heat index values as a heat wave takes hold of the region. The First ...

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 ...

Delaware will feel a dangerous heat wave starting Wednesday as temperatures start surging into triple digits. The National ...

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

Some workers dealt with sweltering conditions as others found business opportunities amid a heat wave that was intensifying ...

Extreme heat warnings have been issued for the entire state July 1. An extreme heat warning for New Castle County will take ...

In the U.S., hundreds of people succumb to heat-related illnesses each year. Older adults and people in areas that historically haven’t needed air conditioning tend to see the highest rates of ...