Millions and millions of Americans are being warned of "dangerous" heat in more than a dozen states as the summer 2025 season ...

The National Weather Service called the warm and above-average temperatures coming in behind the system "the first ...

Millions of Americans are facing oppressive heat, with forecasters expecting a "heat dome" to develop over parts of the ...

Some heat safety tips are obvious — but some are surprising. Know how much water to drink and why humidity actually matters.

Maps show where extreme humidity and 90- or 100-degree temperatures will affect around 255 million people across the United ...

Friday is the 2025 summer solstice, or the first day of astronomical summer. And, right on time, National Weather Service ...

A heat wave is on the way to the Pittsburgh area and will soon blanket the region with extremely hot temperatures in the 90s ...

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