We asked readers and experts, "What exactly is a heat wave?" Experts say it's less about temperatures and more about ...

A heat advisory for northwest and west central Washington was extended until 5 p.m. Thursday, according to the National ...

The Puget Sound region is expected to warm up into the lower-90s Wednesday, with the rest of the week following suit.

Seattle-Tacoma International Airport reached a scorching 94 degrees Wednesday, according to the National Weather Service.

With temperatures expected to hit the 90s in much of Washington Wednesday, the state’s largest utility is paying some customers to save energy.

Western Washington is experiencing a return of hot summer temperatures, with highs reaching 90 degrees in some areas over the ...

France and the rest of Europe are still in the grips of the first major heat wave this summer even as conditions began to improve in some parts of the region. Punishing temperatures are forecast to ...

President Donald Trump is doing everything in his power to make heat waves more brutal and costly.

How to stay cool in a heat wave — even without air conditioning Overnight lows can be a particularly dangerous part of a heat wave, said Ashley Ward, director of the Heat Policy Innovation Hub ...

How to stay cool in a heat wave — even without air conditioning Overnight lows can be a particularly dangerous part of a heat wave, said Ashley Ward, director of the Heat Policy Innovation Hub ...