PORTLAND, Ore. – A string of bright, dry days continues across western Oregon as fall settles in, but a midweek shift could bring the first hint of returning rain. After a calm, cool Sunday morning, temperatures will climb into the low 70s under full sun — ideal for outdoor errands, pumpkin patch visits, or early Halloween decorating.
According to the National Weather Service in Portland, the region will hold onto this sunny pattern through Tuesday, with highs reaching the mid-70s. North and northeast winds will stay light but could gust up to 20 mph in exposed areas along I-84 and near the Columbia River Gorge. Residents are urged to take advantage of the clear, mild weather to complete outdoor projects before conditions turn damp later in the week.
By Wednesday, a weak front will slide inland, bringing a 20% chance of light rain — the first measurable moisture in days. While totals are expected to stay low, commuters could see slick roads during the morning and evening drives, especially west of Portland toward Hillsboro and Beaverton.
Late-week patterns favor cooler air and more clouds as another Pacific system approaches by Friday, hinting at a classic early October transition. With weekend rain more likely, experts recommend clearing leaves from drains and securing outdoor decorations ahead of blustery gusts.
Five-Day Forecast for Portland, OR:
Sun: 71/49 – Sunny and mild; light NE breeze.
Mon: 73/52 – Clear and calm; perfect for outdoor plans.
Tue: 75/48 – Bright skies; slight warming trend.
Wed: 64/48 – Cloudy, 20% rain chance; cooler afternoon.
Thu: 67/50 – Partly cloudy; light rain possible late.