Oregon – A mild, gray start is unfolding across Portland this morning, with dry roads holding for now. That changes quickly by Tuesday afternoon, as a developing rain pattern begins to impact commutes across the metro.
According to the National Weather Service, rain chances increase to 50% Tuesday afternoon, with steadier rain arriving Wednesday at an 80% likelihood. The system will bring light but persistent rainfall, enough to create slick pavement and slower travel across the region.
Today remains mostly cloudy with a high near 77°F, offering a comfortable window for travel on I-5, I-84, and Highway 26. Conditions stay quiet into Monday, with highs near 75°F and continued cloud cover. By Monday night, the first 40% chance of rain begins to signal the incoming shift.
Clouds thicken further Tuesday morning, and scattered rain develops by early afternoon across Portland, Beaverton, and Gresham. Expect damp roads during the evening commute, especially between 3 and 7 p.m. Plan extra time and increase following distance.
Rain becomes more widespread Tuesday night and continues through Wednesday, when highs drop sharply to near 58°F. That cooler, steady rain will make for slower travel and reduced visibility during peak hours. Showers taper Wednesday night, with only a slight chance of lingering rain Thursday.
Five Day Forecast for Portland, OR:
Sunday: Mostly cloudy, high 77°F
Monday: Mostly cloudy, high 75°F
Tuesday: Chance of rain, high 63°F
Wednesday: Rain, high 58°F
Thursday: Slight chance of rain, high 64°F
