PORTLAND, Ore. – A soggy stretch of Pacific air is drenching western Oregon this weekend, keeping umbrellas and raincoats in steady use through the Columbus Day holiday on Monday. A series of low-pressure systems is bringing widespread showers and a few thunderstorms, making travel along I-5 slow and slick from Eugene to Vancouver.
According to the National Weather Service in Portland, rainfall totals between a quarter and half an inch are expected each day through Monday morning, with heavier bursts in localized downpours. Thunderstorms Sunday afternoon could bring brief gusty winds and ponding on urban roadways. Drivers heading to holiday events or pumpkin patches should plan extra time and watch for hydroplaning, especially on untreated secondary roads.
The rain eases by Monday afternoon as drier air pushes inland, bringing partly sunny skies and milder air to start the workweek. Forecasters expect highs near 58 on Columbus Day before a notable warm-up Tuesday, when highs climb into the mid-60s under clear skies.
For residents preparing for outdoor fall activities, the advice is simple: keep rain gear handy through Sunday, avoid flooded intersections, and allow extra braking distance during commutes. By Tuesday, conditions will favor yard cleanup, hiking, and fall foliage trips across the Willamette Valley. The next chance of rain returns late Thursday, signaling another round of typical Pacific Northwest fall weather.
Five-Day Forecast for Portland, OR:
Sat: 59/49 – Periods of rain; gusty at times, use caution on I-5.
Sun: 55/46 – Heavy showers, thunder possible; localized flooding risk.
Mon (Columbus Day): 58/44 – Showers taper, becoming partly sunny by afternoon.
Tue: 65/43 – Bright and mild; ideal for outdoor plans.
Wed: 63/45 – Sunny and pleasant; next rain chance late Thursday.
