2020 Long Range Weather Forecast for Gresham, OR

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 Gresham, OR

Reader Comments

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SoCal North

I just moved from San Diego to Eugene a few months ago, only to find the region is turning into Southern California North.

Hoq many more years of this can we take before the rivers run dry and the hydro plants fail?

Eugene, OR

The Editors's picture

Thanks for sharing your comments and concern. We’re all in this together!

Forest Fires

...and proper forestry management.

This is getting really scary, such little rain!!

The Farmer's Almanac has been close most years, but this year it's the roll of the dice....Here in Brookings we usually get a lot of rain, but this year its horrible...Great weather but its not normal for this time of year, what is going to happen next spring and summer when everything is really dry?? We already had a scary 190,000 acre fire 2 years ago that came 5 miles from town, my heart goes out to all those people in Paradise CA who lost their homes and lives....Time to pray for rain folks!!

Pray for Rain

We concurr completly!!!!! We are praying every day for rain. This is very very scary..and it seems to coincide with pple moving to the pnw en mass. HORRIBLE. We are in issaquah and see heat syress on the red cedars and Tolt River drying up. Heart breaking

Low rainfall!

I'm in agreement Ron and am getting quite fearful as to what next summer will bring. This past winter was relatively dry then we went through a long, hot summer. I have ponds on my land and they aren't filling up. Usually torrential rains during late October and November would have done the job. My wife noticed no geese or ducks. I said there's little water for them to have an easy take off once landing. We usually have flocks of them coming in. We're not too far from the Ridgefield National Wildlife Refuge. The have access to the river and estuaries associated withe Columbia River, but streams and inland ponds that need rainfall are low to dry. I had to dig a grave for one of my pets. The ground was like concrete below several inches and this was in an area of rich topsoil. All we can do is hope and pray. : |

Climate change ... this is going to get worse till Co2 levels dr

You have to understand that c02 is the thermostat of earths biosphere. It really does regulate how much heat is allow to escape into space or hold onto it raising the temperatures. Earth has seen one case of climate change 52 million years ago. But that took thousands of years for animals to adapt. This time around, its only been 138 years since the industrial revolution where co2 has spiked 410 ppm. Co2 has normally moved up and down from 180 to 280 ppm for 6,000 years.


I work outside for a living and the weather patterns are scary I've never in 30 yrs experienced the heat we have had and now not enough snow pack stress on plant material I take care of is obvious I fear for my child and the earth she will and is inheriting

Western Washington Weather

Last year Old Farmer's Almanac stated that we would have a colder than normal winter here in the Seattle area and we didn't see any frost until near November, no snow until Christmas Eve. This year, it says we are to expect a warmer than normal winter.

If last year was colder than normal, then this year it might as well be a rainy summer. I'm hoping that the prediction is wrong and that it actually gets cold this year.

Snow in Olympia on November 3rd

It dumped last November 3rd in oly