Portland, OR – Gray skies and slick pavement set the tone across the Portland metro early Sunday as steady rain sweeps through the Willamette Valley. Commuters should expect damp streets and brief gusts, the kind of autumn weather that fogs windshields and slows traffic along I-5 and I-205.
According to the National Weather Service in Portland, showers and a few rumbles of thunder are possible through midmorning Sunday. Winds may gust up to 25 mph, especially along the Columbia River corridor. Rainfall totals should stay light — around a quarter inch — but enough to make early travel wet and slippery.
Conditions improve rapidly by Monday. Sunshine breaks through as high pressure builds, sending temperatures back near 80°F for two calm, bright days. Light winds and mostly clear skies continue into Tuesday, creating prime conditions for outdoor work and fall cleanups before the next change arrives midweek.
By Wednesday evening, clouds return from the Pacific, bringing another round of showers late in the day and into Thursday. Highs will ease into the 60s, and mornings may turn cooler — an early hint of the region’s gradual slide toward its November chill.
For now, Oregonians can expect one final taste of warmth after a rainy weekend, perfect for enjoying the vivid fall colors before winter’s first whispers arrive.
