Portland

Portland Braces for a Week of Showers and Patchy Fog, National Weather Service Reports

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Published on December 01, 2025
Portland Braces for a Week of Showers and Patchy Fog, National Weather Service ReportsSource: Peter Merholz from Berkeley, CA, United States, CC BY-SA 2.0, via Wikimedia Commons

Portland residents might want to keep their raincoats at the ready for the coming week, as showers and patchy fog are predicted to become familiar companions. According to the National Weather Service in Portland, Oregon, the chance of precipitation today rests at 20 percent, with a slight chance of showers between noon and 1 p.m., following a chilly morning graced by areas of frost before 9 a.m.

A detailed weather report obtained by SFist details that tonight, the likelihood of rain increases to 60 percent, mainly after 4 a.m., with clouds on the upswing and temperatures dipping to around 40 degrees. The calm winds won't do much to chase away the clouds or the wet conditions that seem to have settled in for a prolonged stay.

Heading into Tuesday, showers remain on the meteorological menu, mostly confined to the hours before 10 a.m., coupled with patchy fog likely to obscure the vistas for early risers. As the day unfolds, we're told to expect mostly cloudy skies and high temperatures nudging up against a relatively mild 49 degrees.

And as the days meander onwards, patchy fog seems intent on claiming the night, observed mainly between 11 p.m. and 4 a.m. on Wednesday, and before noon the following day. The daytime cloaks itself in mostly cloudy conditions, with calm winds hardly stirring the air and high temperatures creeping close to the modest comfort of the upper 40s.

By the time Thursday arrives, the National Weather Service will have us brace for a 30 percent chance of rain after 10 a.m. This gentle tease of moisture paves the way for more pronounced rainfall, likely manifesting in the early hours of Friday and persisting into the weekend, accompanied always by the ubiquitous cloud cover Portland knows all too well.

As Saturday dawns, persistent rain once again dominates the forecast, leading to a wet conclusion of the week. The clouds barely relent, only grudgingly allowing temperatures to soar to slightly milder highs in the mid-50s. For anyone venturing out on Sunday, it would be wise not to expect a break from the dreariness as rain and clouds continue their dance, culminating in a high near 53 degrees.