Portland

Portland Braces for Prolonged Rainfall: National Weather Service Predicts Wet Week Ahead

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Published on November 02, 2025
Portland Braces for Prolonged Rainfall: National Weather Service Predicts Wet Week AheadSource: Tony Webster from Portland, Oregon, CC BY 2.0, via Wikimedia Commons

Portland residents can anticipate a series of rain-soaked days ahead, according to the latest forecast from the National Weather Service (NWS). Starting with a mostly sunny day and a peak temperature around 56 degrees, the city will transition into a prolonged wet spell, expected to last at least through the end of the week.

After enjoying the slivers of sunshine and calm winds during the early hours of today, Portlanders should prepare for a 10 percent chance of rain after 5 AM tonight, with a mostly cloudy sky enveloping the region and a low teetering around 47 degrees. The real moisture is set to arrive on Monday morning, with rain likely after 10 am and south-easterly winds adding to the chill.

"Chance of precipitation is 70%," warns the National Weather Service, forecasting for Monday an overcast dome with only a tenth to a quarter of an inch of water expected. However, the forecast rapidly worsens from there—Monday night predicts a continued deluge, with a chance of precipitation increasing to 90%, and a potential for up to half an inch of rain to drench the streets.

On Tuesday, the city should not expect any significant reprieve from the showers, despite a deceptive high near 60 degrees. The downpours may slow before 10am, but a dreary curtain of clouds will linger, promising a soiree with more rain by the evening. The National Weather Service maintains that "Chance of precipitation is 80%," bolstered by east winds that could make umbrellas more of a hindrance than a help.

The indomitable cascade continues through the middle of the week, with Wednesday slated to bring rain before 4 pm, potentially climaxing into thunderstorms later in the day and accompanied by blustery conditions. As the workweek trudges forth, each day seems to echo the sentiments of the NWS: rain and more rain. Thursday's forecast holds no punches, with predictions of yet more rain amidst cooler, cloudy layers that leave daylight a dull memory.

Finally, Friday's forecast leaves residents grasping at straws, hoping for some respite. The day's high is anticipated to reach a near-consistent 57 degrees, still shrouded by the unyielding clouds from earlier in the week. Though the rain is expected to persist, the night may offer a glimmer of change, with just a chance of showers, leaving Portlanders to wonder when they might glimpse the sun again.