Weather
Northwest Weather Outlook: October Warmth, Rainfall Divide Ahead Oct. 16–20
SEATTLE, WA – A warmer than normal October weather pattern could develop across the Pacific Northwest beginning Friday, Oct. 16, with federal forecasters also favoring drier conditions across much of
By Avery Collins · 2026-10-11T14:16:38.837Z
SEATTLE, WA – A warmer than normal October weather pattern could develop across the Pacific Northwest beginning Friday, Oct. 16, with federal forecasters also favoring drier conditions across much of the region through Tuesday, Oct. 20.
According to the National Oceanic and Atmospheric Administration's Climate Prediction Center, the 6 10 day temperature outlook issued Saturday, Oct. 10, favors above normal temperatures across Washington, Oregon and Idaho during the five day period.
The warmer signal extends from coastal communities into the Cascade Mountains and inland Northwest, with much of the region showing approximately 50% to 70% probabilities of above normal temperatures.
Portions of the interior Northwest show even stronger warm signals, suggesting temperatures are more likely to exceed typical mid October averages.
Drier Conditions Favored Across Much of the Northwest
NOAA's accompanying precipitation outlook indicates increased probabilities of below normal precipitation across much of Oregon, Idaho and interior Washington.
The strongest dry signal is concentrated farther south, particularly across portions of southern Oregon and neighboring northern California, where probabilities of below normal precipitation are higher.
However, the outlook differs across coastal Washington.
Areas near the northern Washington coast and Olympic Peninsula generally favor near normal precipitation, with a small portion of the far northwestern coast leaning toward above normal precipitation.
This creates a noticeable rainfall divide between coastal communities and drier inland locations.
What Residents and Travelers Should Expect
The combination of warmer temperatures and increased chances of below normal precipitation could influence outdoor activities, hiking, camping and fall travel across the Pacific Northwest.
Travelers along Interstate 5, Interstate 84 and Interstate 90 should monitor updated forecasts for changing conditions, particularly when crossing mountain passes.
Despite the warmer outlook, October weather can still produce localized rainfall, cooler overnight temperatures and changing mountain conditions.
The outlook does not guarantee completely dry weather or rule out individual storm systems.
Residents across Washington, Oregon and Idaho should continue checking National Weather Service forecasts as Friday approaches for specific temperatures, rainfall timing and local travel conditions.