Portland, Ore. – Thunderstorms will fire across northwest Oregon this weekend, bringing slick roads, brief downpours, and possible lightning hazards through Monday night. Portland drivers could face wet commutes with reduced visibility and scattered flooding in low-lying areas.
According to the National Weather Service in Portland, showers and storms will develop Saturday afternoon with a 30 percent chance of rainfall, increasing to 50 percent Saturday night. Widespread activity is expected Monday, with rainfall chances climbing to 80 percent by evening as thunderstorms move in. Forecasters warn that rainfall amounts could reach a quarter inch or more in localized storms.
Sunday offers a brief break, with skies turning partly sunny by afternoon, but showers will return late in the day. Areas along I-5 and U.S. 26 should prepare for slower travel times during peak rainfall.
Residents are advised to secure outdoor items, charge electronics ahead of potential outages, and avoid unnecessary driving during periods of heavy rain or thunder. Flooding in poorly drained intersections could linger into Tuesday.
Storm chances remain elevated through Tuesday before conditions ease midweek. Additional advisories may be issued as thunderstorm coverage expands.
Five Day Forecast for Portland, OR
- Saturday: Chance of showers and thunderstorms, high near 76.
- Sunday: Slight chance of showers, becoming sunny, high near 77.
- Monday: Showers and thunderstorms likely after 5 p.m., high near 71.
- Tuesday: Showers and thunderstorms, high near 69.
- Wednesday: Chance of showers, partly sunny, high near 73.
