2020-2021 Long Range Weather Forecast for Seattle, WA

Get the Long Range Weather for Your Location

See long range weather forecasts for the next 60 days from The Old Farmer’s Almanac! Our long range forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to sporting events and outdoor activities.

To see long term forecasts for the entire year, pick up a copy of The 2021 Old Farmer’s Almanac, available online and in stores.

Note: Long range forecasts are regional, not city-specific.

Free 2-Month Weather Forecast

November 2020 Long Range Weather Forecast for Pacific Northwest
DatesWeather Conditions
Nov 1-8Rainy periods; cold, then mild
Nov 9-14Occasional rain, cool
Nov 15-20Rainy; mild, then cool
Nov 21-23Snow north, rain south
Nov 24-30Rain, some heavy; mild
Novembertemperature 48° (1° above avg.)
precipitation 7.5" (1" above avg.)

December 2020 Long Range Weather Forecast for Pacific Northwest
DatesWeather Conditions
Dec 1-3Rainy periods
Dec 4-8Rain and snow
Dec 9-13Sunny, cold
Dec 14-22Rainy periods, mild
Dec 23-26Sunny, cold
Dec 27-31Rainy periods, cool
Decembertemperature 45° (2° above avg.)
precipitation 7.5" (avg. north, 2" above south)

Annual Weather Summary
November 2020 to October 2021

Winter temperatures and precipitation will be close to normal, on average, with below-normal snowfall. The coldest periods will occur in mid-January and early and late February. The snowiest periods will occur in early December and from mid- to late February. April and May will be slightly cooler and drier than normal. Summer will have slightly above-normal temperatures, on average, with above-normal precipitation. The hottest periods will be in mid-June, mid-July, and mid-August. September and October will be warmer and drier than normal.

Map showing Old Farmer's Almanac long range weather region number 15

About the Pacific Northwest Region

The Pacific Northwest long range weather region includes all or part of the following states: CALIFORNIA (Arcata, Eureka, Fortuna, McKinleyville), OREGON (Beaverton, Eugene, Gresham, Portland, Salem), WASHINGTON (Bellevue, Everett, Seattle, Tacoma, Vancouver).

Pacific Northwest Neighboring Regions

Here are the regions that neighbor the Pacific Northwest long range weather region:

Temperature and Precipitation November 2020 to October 2021

Temperature and Precipitation Chart, November 2020 to October 2021 for Seattle, WA

Reader Comments

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Sonw

Since COVID HAS dominated it would be nice to have a snowy Thanksgiving and Christmas. That way it won't feel so bad to not be with your families.

coWeather in the mountains of Washington State

Since we are already getting snow fall almost every night in Mineral, I predict we have snow on Thanksgiving and Christmas.

Snow From the Evergreen state!

Man, I can't wait for it! Last time I remember A big amount of snow was November 2018!

Californians don't "ruin" the weather...

Re: Linda Janson: Once and Oregon native who saw everybody complain about incoming Californians "ruining" the state, back in the 1980's, I can see the mentality has edged up North to Wash State. The Pac NW is our beautiful rainy weird home..and the Californians can't ruin our weather patterns, just complain about them, I suppose. Many come here to try to take care of our state's environment even more because they've seen the worst of climate change due to fires, smog etc. A member of my family grew up with severe smog alerts during recess down in Alhambra, CA, and then fog/smog up in San Francisco. That part of the family fell in love with the Pacific NW because of the drinkable water alone. I'd say it's up to all of us to preserve our beautiful paradise. Let's do it!

weather

It rains all the time here in the Seattle area. I'm a native Washingtonian and Californians are ruining our beautiful paradise.

Love Western Washington Weather

We moved from northern California to Washington State in 2008, and love it up here! I was always perplexed with Californians complaining about rain, when they were lucky enough to get rain. Sunshine all the time makes most of California a desert and prone to fires. We’ve also lived in SE Texas (Houston) with plenty of rain, but too hot, humid and practically no seasons. Cool, rainy weather is what makes Washington State so green and beautiful. I love western Washington’s cool Semi-Mediterranean to oceanic climate! I’ll never go back to the hot-dry and hot-humid weather.

Cold Weather

I cannot wait for the cold to come. We will SEE snow whether it accumulates or not. I'm ready for this winter!

In astoria

Hopefully we get a colder winter here with more snow, as school is going to be cancelled anyways...

weather

This is not going to be a normal winter. Normal as the last 6 years. Its going to be COLD. And a lot of snow at M. Hood. You better get ready for ALOT OF SNOW in December and January. Enjoy.

lol this thing is way off

says rain every week and cool but its 90 degrees the end of september in portland and no rain in forecast lol

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