Portland

Portland Faces Weekend Showers Followed by Sunny Week Ahead, Says National Weather Service

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Published on September 20, 2025
Portland Faces Weekend Showers Followed by Sunny Week Ahead, Says National Weather ServiceSource: Tony Webster from Portland, Oregon, CC BY 2.0, via Wikimedia Commons

The forecast for Portland in the upcoming week is mixed. After a sunny day with highs reaching near 80, Portlanders will see a switch in weather patterns, as rain is likely to start in the early hours of the following morning. According to the National Weather Service, there's a 60% chance of precipitation tonight, with less than a tenth of an inch of rainfall possible.

For those planning their Sunday activities, consider an indoor alternative. The NWS predicts rain as the main event before 9 AM, with an 80% chance of precipitation and new rainfall between a quarter and half an inch. But the clouds should part later in the day, with the high settling near 69 and south winds turning west in the afternoon. It seems like a typical Portland rain pattern, arriving without much fuss and leaving with a similar quietude.

The week appears to promise a return to drier conditions. Monday and Tuesday are expected to bring sunny skies with temperatures 74 and 83 respectively. Nighttime throughout the early week will continue to be mostly clear, so those hoping for starlit evenings are in luck. With calm winds and comfortable evening temperatures, outdoor dining and late walks remain a viable and pleasant option.

Portland's midweek weather stays consistently sunny, with temperatures in the mid to high 70s. The NWS indicates that Wednesday will be sunny, with a high near 78, while the evening should see the mercury drop to around 53. Thursday follows a similar pattern with sunshine and a high near 73. Aside from a slight chance of rain on Friday, the extended forecast suggests an ideal September week that's neither too hot nor cold.