Weather
Portland, Oregon Weather: November Outlook Oct. 26–Nov. 1
Portland, OR – Oregon residents could be heading toward a cooler and wetter start to November, but not before Portland enjoys a brief stretch of unusually mild feeling autumn afternoons. Temperatures
By Wesley Grant · 2026-10-19T09:45:07.756Z
Portland, OR – Oregon residents could be heading toward a cooler and wetter start to November, but not before Portland enjoys a brief stretch of unusually mild feeling autumn afternoons. Temperatures are forecast to climb into the lower 70s Tuesday and Wednesday before dropping into the upper 50s by Saturday, ahead of a longer range outlook favoring below normal temperatures across much of the state from Oct. 26 through Nov. 1.
According to NOAA's Climate Prediction Center, the eight to 14 day temperature and precipitation outlooks issued Sunday, Oct. 18, favor below normal average temperatures across much of Oregon during Oct. 26–Nov. 1. Above normal precipitation is also favored statewide, suggesting a greater likelihood of a cooler, wetter pattern as October ends and November begins.
Portland could reach 73 degrees before temperatures fall The National Weather Service forecast for Portland shows Monday beginning with mostly cloudy skies and a high near 64 degrees.
Tuesday brings partly sunny conditions and a high near 72 degrees, followed by sunshine Wednesday and a high near 73.
Those two afternoons could provide a pleasant stretch of fall weather before temperatures begin declining.
By Thursday, Portland's forecast high drops to approximately 62 degrees, an 11 degree decrease from Wednesday.
Friday is expected to remain partly sunny with a high near 60 degrees, while Saturday brings mostly cloudy skies, a chance of rain and a high near 59 degrees.
That represents a 14 degree decline between Wednesday and Saturday.
Rain chances continue Saturday night and Sunday, with Sunday's high expected to reach approximately 61 degrees.
Overnight lows are also expected to become cooler, falling from around 48 degrees Wednesday night to 43 Thursday night and 41 Friday night.
Western Oregon faces a cooler, wetter outlook NOAA's extended temperature outlook places much of western Oregon within an area favoring below normal temperatures.
That includes Portland, Salem, Eugene and communities along the Oregon coast.
The precipitation outlook also favors above normal totals across these areas, although the maps do not establish specific rainfall amounts or the timing of individual weather systems.
Eastern Oregon is also favored to experience above normal precipitation, while the temperature outlook generally leans cooler across much of the region.
The combination is particularly notable because Oregon's outlook contrasts with the widespread above normal temperatures favored across the Plains, Midwest and much of the eastern United States.
However, the temperature outlook does not guarantee that every day will be colder than usual. Warmer afternoons remain possible even during a period that averages below normal.
What the November outlook means for Oregon For Portland and the surrounding Willamette Valley, the immediate weather story is the transition from lower 70 degree afternoons Tuesday and Wednesday to highs around 60 degrees later in the week.
The longer range outlook suggests that cooler conditions could remain favored as November begins, accompanied by increased precipitation potential.
Along the Oregon coast, residents should monitor updated forecasts for changing rain and wind conditions, although the supplied outlook does not establish a specific coastal storm or wind threat.
In the Cascade Mountains, conditions can differ significantly from nearby valleys. NOAA's probability maps do not provide snow levels or snowfall totals, so any mountain snow concerns will require separate local forecasts.
The rain chances expected Saturday and Sunday are also distinct from the Oct. 26–Nov. 1 outlook. Current guidance does not establish that the same weather system will persist into the following week.
As November approaches, updated National Weather Service forecasts will help determine whether the cooler pattern brings sustained chilly afternoons, colder nights or additional periods of rain.
Are you ready for Oregon's cooler, wetter fall weather, or would you rather keep Portland's 70 degree afternoons a little longer?