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

Thursday was the peak of this brutal heat wave, with heat index values topping 110 degrees in several Connecticut towns.

It was extremely hot and humid at the final World Cup match hosted by Toronto on Thursday. In fact, it was near the "wet bulb ...

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

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 ...

What is the heat index? Learn how humidity makes temperatures feel hotter, why it matters during New York's heat wave and ...

Temperatures in the triple digits are expected through the Fourth of July weekend and beyond. Follow these expert-approved tips to learn how to read your local heat index to determine if it's safe to ...

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

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

Trey Fulbright is the newest meteorologist on the KDKA First Alert Weather Team. In addition to seeing his forecasts on air, he also does weather and climate reporting. Trey comes to KDKA from Des ...

Meteorologist Ray Petelin joined the KDKA Weather Team in October 2018, but is no stranger to the weather in Pittsburgh and Western Pennsylvania. He has been forecasting in Pittsburgh since 2011 and ...