Triple-digit heat grips part of the Pacific Northwest for a second day, relief on the way

Aug 11, 2025 by

KATU2 News


A shot of the Portland skyline with the Fremont Bridge in the center. (KATU)
Portland shines under the sun - Portland skyline - KATU photo
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The sun hovers over the Tilikum Crossing Bridge in Portland. Temperatures are expected to reach triple digits in the Northwest later this week. (KATU)

An Extreme Heat Warning remains in effect for the Willamette Valley, Columbia River Gorge, and portions of central Oregon.

WEATHER | LATEST STORM TRACKER 2 FORECAST

KATU has declared a Storm Tracker Weather Alert for daily high temperatures hitting triple-digits and morning lows not offering much relief from the heat.

“With little to no temperature recovery last night or early this morning around the north valley, we have a very good chance of hitting 99-101 degrees today,” said Storm Tracker 2 Meteorologist Rhonda Shelby. “For many valley residents, this could be their second day above 100 degrees.”

On Sunday, Portland International Airport hit 99 degrees for its daily high, while several other cities hit 100 or 101 degrees.

“Drink plenty of fluids, stay in a cool place during the heat of the day, stay out of the sunshine, and check up on relatives and neighbors,” NWS Portland said in their warning message. “For those without air conditioning, use fans to keep air moving.”

A Heat Advisory is also in effect for portions of the Oregon Coast Range, Southwest Washington, and along the Columbia River for Columbia County in Oregon, and Cowlitz County in Washington.

Multnomah County did not open cooling shelters on Sunday. On Monday, Multnomah County announced it would be opening three cooling centers.

  • Gateway Church, 13300 N.E. San Rafael St., Portland, operated by Cultivate Initiatives
  • Congregation Beth Israel, 1972 N.W. Flanders St., Portland, operated by Do Good Multnomah
  • Portland Covenant Church, 4046 N.E. Martin Luther King Jr. Blvd., Portland, operated by Multnomah County

Multnomah County libraries will be open to provide residents with a place to cool off. Four libraries, Albina, Center, Gresham, and Midland, will be open two hours later than usual. All others will be open 10 a.m. to 6 p.m.

“From 11 a.m. to 10 p.m. today, TriMet won’t turn away anyone who is going to a cooling space and who cannot otherwise pay their fare. Please tell your bus operator that you’re heading to or from a cooling center,” Multnomah County said on its website.

Washington and Clackamas counties will also have locations available for those without air conditioning to come inside and get a break from the heat.

The heat is forecast to break on Wednesday with daily high temperatures dropping into the mid-80s. Shelby says a chance of rain is in the forecast for Friday.

“When it comes to summer heat, it’s been a fairly mild season so far,” Shelby stated.

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Officials continue to urge people not to leave children and pets inside cars when the temperatures soar. The temperatures inside a vehicle rise extremely quickly and can be deadly.

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