Extreme heat warnings throughout Oregon, Southwest Washington

Heat warnings and advisories are in place for much of Oregon and Southwest Washington through Tuesday night. Daytime temperatures in many areas could reach triple digits, and overnight temperatures aren’t expected to provide much relief

The National Weather Service has issued extreme heat warnings throughout the Willamette Valley, the Columbia River Gorge and the Hood River Valley, south through the foothills of the Cascades in Central Oregon, and east through the John Day Basin and Blue Mountains.

Temperatures in those areas could range from about 97 to 105 degrees, with low temperatures generally staying around or above the mid-60s. The warnings are in effect through 10 p.m. Tuesday.

In Southern Oregon, parts of Curry, Josephine and Jackson counties are under extreme heat warnings t