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

Triple-digit temperatures can be dangerous for people caught outside — and for those experiencing homelessness, the ...

Underlying conditions created by a lower-pressure trough in the upper part of the atmosphere near the Mexico-California ... heat wave is likely to be over come Saturday. So, too is the air alert.

Woodland Hills hit 95 degrees Wednesday, which was among the hottest temperatures recorded in Los Angeles County, but the mercury remained below levels necessary to topple heat records ...

The National Weather Service office in Las Vegas also issued an “extreme heat warning” for Death Valley National Park, the ...

A critical component of heat wave preparedness ... The heat alerts go into effect on Friday and, in most cases, last through Saturday. In some parts of California, extreme heat is expected through ...

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

In the U.S., hundreds of people working or playing outside – even those who seem healthy – succumb to heat-related illnesses ...

More than 37 million Americans are under heat advisories across the U.S., according to the National Weather Service. Here's ...