Portland

Portland Forecast Warns of Showers, Thunderstorms, and a Wet Columbus Day Ahead

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Published on October 12, 2025
Portland Forecast Warns of Showers, Thunderstorms, and a Wet Columbus Day AheadSource: Wikipedia/HutheMeow, CC BY-SA 4.0, via Wikimedia Commons

Portland residents should brace for a wet and wild day as the National Weather Service (NWS) predicts showers and possible thunderstorms with certainty in today's weather forecast. According to the NWS report, the high is expected to be near 54 degrees, accompanied by a southwest wind moving at 6 to 8 mph; as much as a quarter of an inch of rain could fall, potentially more during thunderstorms.

As the cloudbursts look to drench the city, there's a 100% chance of precipitation during the day, dwindling to 60% tonight, with showers likely and possibly another thunderstorm before 9 p.m., followed by a chance of more showers after. Skies will be mostly cloudy, and the temperature will dip to around 44 degrees, while the calm wind shifts north around 5 mph after midnight. For those looking forward to Columbus Day, the morning may start cloudy with lingering showers before clearing up later, with a high near 57 degrees and a chance of gusty northeasterly winds.

Looking ahead to the rest of the week, the NWS Portland office forecasts clear skies on Tuesday with a pleasant high near 63 degrees, while nighttime will also remain mostly clear with the temperature dropping to around 42. The reprieve from the rainfall will give locals a chance to dry out before the next bout of showers that's forecasted to return by Thursday.

Wednesday's forecast offers a respite from the damp conditions with another day of sunshine and highs near the same pleasant mid-60s range. There will be increasing clouds in the evening, setting the stage for a chance of rain again on Thursday, as per the same NWS report.