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

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 ...

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

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

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

The United States is experiencing its first significant heat wave of the year, beginning Friday across the Great Plains and ...

Now that the Delaware Valley is seeing the first official day of summer, an Extreme Heat Watch has already been issued for ...

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

A "dangerous" heat wave has begun in parts of the United States — and high temperatures are expected to move eastward over ...

People are trying to stay cool in today's humidity, and businesses are preparing for what's to come as we track dangerous ...

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

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