2020-2021 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

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)

January 2021 Long Range Weather Forecast for Pacific Northwest
DatesWeather Conditions
Jan 1-8Rainy periods, turning mild
Jan 9-18A few showers, turning cold
Jan 19-24Rain, then sunny, cool
Jan 25-31Sprinkles and flurries, cold
Januarytemperature 44° (1° above avg.)
precipitation 3.5" (1" below avg. north, 4" below 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 Gresham, OR

Reader Comments

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It won't end!

The Almanac seems to be completely wrong in their weather predictions for the 2017/2018 year. I don't think the sun is ever going to come out and it feels like winter in April! YUK!!!!!

Snow in February

We've got freezing temps and snow. Today is the 21st of February and it seems Oregon is being hit by a cold front this week and next. Hoping your March forecast is accurate.

More to Oregon than West portion

Ontario is on the Snake River ID/OR border as far E as you can go & still be Oregonians. We’re still considered NW. It would be good to have long range forecast even if just Boise ID about 50 milesE of us.

Ontario, Oregon

The Editors's picture

Geographically, Ontario—indeed, Oregon—is considered NW (to be in the northwest). However, for purposes of Almanac forecasts, Ontario is in the Intermountain region. Oregon falls in two of our forecast regions: The area more or less east of the Cascades is in the Intermountain region, number 13. (Intermountain being between the mountains; in this case, the Cascades and the Rockies.) The area more or less west of the Cascades is in the Pacific Northwest, number 15. The “shapes” of the regions `are based on the climatological movement of weather systems. Or, in very simplified fashion, the way the winds blow—the winds being jet streams, oscillations, etc. Inevitably some locations will “sit” on the border of two (or more) regions.

You will see, below the map on the following link page, that Ontario, Oregon, is one of the cities in Region 13: https://www.almanac.com/weather/longrange/region/us/13

Thanks for your interest in The Old Farmer’s Almanac.

Left out

Your weather forcast is totally leaving us in Central Oregon out of the picture. Our climates here range from high desert to mountain. Please include a forcast for us too! Maybe Redmond Oregon? Thank you

central Oregon

The Editors's picture

Oregon falls in two of our forecast regions: The area more or less east of the Cascades is in the Intermountain region, number 13. (Intermountain being between the mountains; in this case, the Cascades and the Rockies.) The area more or less west of the Cascades is in the Pacific Northwest, number 15. The “shapes” of the regions `are based on the climatological movement of weather systems. Or, in very simplified fashion, the way the winds blow—the winds being jet streams, oscillations, etc. Inevitably some locations will “sit” on the border of two (or more) regions. In that case, we suggest that you read the forecast for the adjacent region/s as well. And consider that our forecasts are deviations from normal, or average, conditions. (Local meteorologists might refer to above/below normal or average conditions on a given day; they are using the same calculations that we use. We are not suggesting that they use our forecasts; but the 30-year period on which norms and averages are based is universal.)

For a more specific forecast for your area (Redmond or any place), use this: https://www.almanac.com/weather/forecast

 

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