2020 Long Range Weather Forecast for Pacific Northwest

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

October 2020 Long Range Weather Forecast for Pacific Northwest
DatesWeather Conditions
Oct 1-6Rainy periods, cool
Oct 7-13Rainy periods, mild
Oct 14-23Rain, some heavy; cool
Oct 24-31Rainy periods; cool, then mild
Octobertemperature 55° (1° above avg.)
precipitation 5" (2" above avg.)

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.)

Annual Weather Summary
November 2019 to October 2020

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

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 2019 to October 2020

Temperature and Precipitation Chart, November 2019 to October 2020 for Pacific Northwest Region

Reader Comments

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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

PNW weather

We came from Northern California where it was over 100 degrees for 4 to 5 months of summer. We are now living the evergreen state instead of desert. Refreshing is an understatement! But It was the 4 months of fires and tremendous smoke that drove us out.

Weather in Washington

We moved to the east part of the state and find little rain this side.Do get some snow but not too much.Very pretty here.

Cool Weather Makes It More Livable

People have lost their sense of perspective for the last couple of decades. There was a time when there was only a couple of months of warm weather and no one had air conditioning at all. I see the weather at 72 degrees with everyone having their car windows rolled up with the climate control on releasing additional hydrocarbons in the air. Spring and summer is for driving the country roads with the windows rolled down. The cooler weather is great for woodwork building custom kitchen cabinets or a new dining room table. Why go to a country fair when it’s so darn hot?? You ever try to build an old hot rod pickup on a hot day?? Then when everything is green.....to include your yard, the plants pull more carbon out of the air. The weather now is allot more warm than it was decades ago when the Columbia River froze hard and people drove on it to Portland. There was allot more flooding too....

2020 PNW Summer

I never understand why people are surprised when we get a cooler summer! It's Western Oregon/PNW -- totally normal weather. I love it! Keeps our forests green and lush. Looking forward to cozy autumn and maybe some snow this winter? Fingers crossed!

Summer weather

Hi what’s the rest of year forecast for August though December

2020 oregons summer

Oregon repeats cooler summers every so many years 2012 this is 2020 I told a lotnof friends we will have a clouded summer they thought I was nuts' I told them living in oregon 57 years gives us experience we ate due for these cooler temps aided by a cooling thermal barrier protecting us from the mid state heat

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