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

All of Michiana has been placed under an Extreme Heat Warning, which will be in effect until Tuesday evening. During this ...

St. Louis, Chicago and Des Moines were among the cities that saw heat indexes hit triple digits on Saturday, with the East ...

Over 140 million Americans will be under the highest-level extreme heat alerts by Sunday during a wave of above-average ...

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 ...

A dangerous, record-breaking heat wave will spread over the eastern United States and is expected to last several days.

States in the Midwest and Northeast could reach record temperatures in the coming days: Here’s where and when.

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

The first big heat wave of 2025 has arrived, coinciding with the official start of summer. More than 40 million people in the ...

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

Friday is the summer solstice and much of the U.S. is going to be baking in serious heat starting this weekend with a heat dome expected to keep temperatures soaring. Stephanie Sy reports on what you ...