Portland, Ore. – Drivers across Oregon should prepare for slick roads late Sunday into Monday as steady rainfall moves through Portland and surrounding communities. Rain could affect travel on I-5 and local arterials by daybreak Monday, creating delays for commuters heading south into downtown.
According to the National Weather Service, rain will begin before 5 a.m. Sunday with the heaviest showers expected through the afternoon. Showers may linger into Sunday night before clearing early Monday. Winds will shift south at around 7 mph, adding to travel concerns, particularly for high-profile vehicles.
Portland is expected to reach a high near 69 degrees on Sunday before dropping into the low 50s overnight. Monday will bring drier conditions, with a high around 74, giving residents a short break before a stretch of warmer, sunnier weather returns. The weather service urges residents to allow extra travel time on wet roads and to avoid flooded areas, especially in low-lying neighborhoods near Johnson Creek and the Columbia Slough.
By Tuesday, temperatures will rebound to the low 80s under mostly sunny skies, a welcome shift for outdoor activities and fall events. Clear nights will remain cool, dipping into the mid-50s, so residents should plan accordingly.
Warnings remain in effect for wet travel through early Monday, but no additional advisories are posted beyond that. More updates are expected if heavier rainfall develops Sunday afternoon.
Five-Day Forecast for Portland, Oregon
- Sunday: Rain, high 69°
- Monday: Sunny, high 74°
- Tuesday: Sunny, high 83°
- Wednesday: Sunny, high 78°
- Thursday: Sunny, high 73°
