Portland

Seasonal Showers on the Horizon: Portland Braces for a Week of Rain and Mild Temperatures

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Published on October 08, 2025
Seasonal Showers on the Horizon: Portland Braces for a Week of Rain and Mild TemperaturesSource: Tony Webster from Portland, Oregon, CC BY 2.0, via Wikimedia Commons

The National Weather Service in Portland forecasts a partly sunny day with a high near 63 degrees, amid a mild westerly breeze. As the City of Portland navigates through its ever-gray autumnal canopy, residents can expect the weather to follow suit, unexceptional but seasonal. Tonight's forecast suggests a 40 percent chance of rain, primarily between the late hours of 11 pm and the early hours of 4 AM. According to the National Weather Service, the expected overnight low is a cool 49 degrees, with calm winds.

Looking forward to Thursday, the city sees a slight break in precipitation with only a 30 percent chance of rain, mostly subsiding before 11 AM. The day offers a glimpse of sunlight amidst the clouds, with temperatures peaking at around 65 degrees, while winds remain light and variable. However, rain makes a prominent return Thursday night, with a 60% likelihood after 11 pm and less than a tenth of an inch of new precipitation considered likely.

The forecast going into the weekend suggests a consistent pattern of rainfall in Portland. Friday carries a 70 percent chance of rain, coupled with a high near 64 degrees, and mild winds persisting with little variation. Rain is expected to continue through Friday night, presenting a 70 percent chance of precipitation and low temperatures holding steady at around 49 degrees.

For those with weekend plans, umbrellas and raincoats will be a necessity. Saturday's outlook is certain – rain is anticipated throughout the day with a 100 percent chance of precipitation and a high temperature reaching just under 60 degrees. The evening remains wet and overcast, with a low hovering near 48 degrees and rain persisting well into the night. Sunday maintains this trend, with more rain expected, and cloudy skies prevail; the high peaking at a brisk 56 degrees, as the National Weather Service stated.

The following week opens to Columbus Day, which presents a chance of rain amidst fleeting sun and a high of around 57 degrees. Monday night could see more rain in mostly cloudy conditions, with a low around 46. The unsettled weather continues into Tuesday, albeit with a slight chance of rain, and day temperatures are predicted to be partly sunny with a high near 61.