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

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

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

Philadelphia is under a heat advisory, with temperatures expected to soar. From public pool openings to symptoms of heat ...

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

Friday marks the start of summer and the Philadelphia region's weather will be at its nicest and most comfortable of the next ...

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

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

Widespread 90s, even perhaps a few 100s, will bake much of the eastern two-thirds of the country in a dangerous heat wave.

Turn ceiling fans counterclockwise to push cool air down, avoid running appliances during the day, and ease the burden on ...

The heat index will soar above 100 degrees early next week. Older adults, people with heart issues and those without A/C are ...

The sun was shining over Philadelphia on Thursday, bringing heat with it, but not enough to keep people indoors.