Long-Range Weather Forecast for Seattle, WA

November 2026 Long Range Weather Forecast for Pacific Northwest

Dates	Weather Conditions
Nov 1-2	Sunny, chilly
Nov 3-16	Rainy periods, mild
Nov 17-20	Isolated showers north, rainy south; cool
Nov 21-22	Sunny, chilly
Nov 23-30	Rainy periods, some heavy; mild
November	temperature 51° (3° above avg.) precipitation 9" (1" above avg. north, 5" above south)

December 2026 Long Range Weather Forecast for Pacific Northwest

Dates	Weather Conditions
Dec 1-10	Showers, mild
Dec 11-14	Showers north, rainy south; cool
Dec 15-24	Rainy periods, chilly
Dec 25-31	Periods of rain and snow, bitter cold
December	temperature 43° (1° below avg.) precipitation 8" (avg. north, 2" above south)

12-Month Long-Range Weather Outlook

November 2026 to October 2027

Winter temperatures will be warmer than normal, with the coldest periods in late December, early January, and early February. Precipitation and snowfall will be above normal, with the snowiest periods in late December, mid-January, and mid–February. April and May will be cooler and drier than normal. Summer temperatures will be above normal, with the hottest periods in early and mid–June, late July into early August, and mid-August. Precipitation will be below normal. September and October will be warmer and wetter than normal.

See the complete 12-month weather forecast in The Old Farmer’s Almanac..

Weather Trend Graph

November 2026 to October 2027