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 ...

Millions are under extreme heat alerts across the Great Lakes and Northeast starting this weekend as a blistering heat wave ...

The National Weather Service warns of sweltering heat and humidity affecting over 170 million Americans across the Northeast ...

Welcome to Summer! And right on point, Mother Nature will deliver the first heat wave of the year, which will linger through next Thursday. As a reminder, three consecutive days at or above 90 is ...

Organizers are gearing up for the Manayunk Arts Festival this weekend. Thousands of people are expected to fill Main Street under the summer sun.

People were taking advantage of the cooler temperatures before the heat gets here. Kerri Corrado talked to those enjoying the ...

The first heat wave of summer could bring punishing humidity and triple-digit temperatures to many states east of the Rocky ...

For many Americans, high humidity will make it feel in the triple digits. The National Weather Service is urging people to ...

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

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 hitting the Philadelphia region starting this weekend. The city has declared a Code Red beginning Sunday at 10 ...