A study from Oregon State University and the U.S. Forest Service found the four-day extreme heat event scorched more than ...

PORTLAND, Ore (KATU) — The first day of an extended heat wave has arrived and the hottest weather of the year will kick it off. An ‘Extreme Heat Warning’ is now in effect. On Friday, Portland reached ...

A severe heat wave is impacting the southwestern U.S., with temperatures expected to peak on Thursday and remain high through the weekend. Excessive heat warnings are in effect for much of Southern ...

“An anomalously strong ridge of high pressure centered over the Four Corners states will lead to a significant heat wave,” the National Weather Service said in a national forecast discussion Tuesday.

The wave of extreme heat killed hundreds of people across the Pacific Northwest. It also took a toll on the region's forests, ...

We may not notice it, but marine creatures off the Bay Area coast are already feeling the heat. Ocean temperatures in the ...

What’s not to love about warmer weather, I say? Bring on the blue skies, sunshine on my skin, and ditching the heavy, winter layers. Summer is certainly my season. But when the temperature keeps ...

The Southwest is in for peak dog days as a looming heat wave has triggered extreme heat warnings and advisories for 80 million people from the U.S.-Mexico border to southwest Utah. “An anomalously ...