Extreme humidity and heat will affect around 265 million people across the country this week. Maps show where and when to ...

The City of Philadelphia's Department of Public Health has declared a heat health emergency that will be in effect starting ...

As the Philadelphia area braces for extreme heat, thousands of homes remain without power following Thursday's storm.

The forecast temperature at kickoff is 91 degrees, and fans are allowed to bring in water. There will likely be familiar ...

Temps may crack 100 for the first time in 13 years. The temperature made it to 91 on Saturday in Philly, and by the end of ...

Heat alerts have been issued from Colorado to Maine, including more than 150 million Americans. Heat index values in the ...

Our first heat wave of the year is finally here and will remain in the region through Thursday. As a reminder, three ...

Within those constraints, finding ways to stay hydrated and lower your body temperature are paramount. You can do this by ...

A heat wave is moving in, with over 100 million people from the Midwest to the Northeast on alert for life-threatening heat ...

Philadelphia declares a Heat Health Emergency due to extreme heat, activating services like cooling centers and the PCA Heatline.

The National Weather Service has boosted the impending heat wave for Delaware County and nearly the entire tri-state area to the highest alert possible: an Extreme Heat Warning. The warning is set to ...

"A dangerous, widespread heat wave will bake the central and eastern U.S., bringing the hottest temperatures of the year and uncomfortably muggy air to the Midwest and Northeast that in some areas ...