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 2020 Old Farmer’s Almanac, available online and in stores.

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

Free 2-Month Weather Forecast

July 2020 Long Range Weather Forecast for Pacific Northwest
DatesWeather Conditions
Jul 1-3Sunny, warm
Jul 4-11Scattered showers, cool
Jul 12-20Sunny, turning hot
Jul 21-28Scattered showers, warm
Jul 29-31Showers, cool
Julytemperature 66° (1° above avg.)
precipitation 0.3" (0.2" below avg.)

August 2020 Long Range Weather Forecast for Pacific Northwest
DatesWeather Conditions
Aug 1-8Sunny, warm
Aug 9-23Showers and t-storms, cool
Aug 24-31Sunny, turning hot
Augusttemperature 64° (2° below avg.)
precipitation 2.5" (1.5" 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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Temperatures, when to plant?

I am planning to give it another try at planting a veggie garden in containers this year. With the fluctuating temperatures and snow still falling here, when would be the best time to start? One week we have 45°-55° then snow and freezing temperatures the next, which seems to be a trend at the moment.

when to plant

The Editors's picture

Well, there is lots to say about when to start. First, you can get an estimate of your last frost date here: https://www.almanac.com/gardening/frostdates

Then, depending on what you plan to grow, you want to have warm soil; yes, even in containers. Here’s some more insight on warm soil: https://www.almanac.com/blog/gardening/garden-journal/warming-your-soil-...

If there is another frost, or something close, you want to protect your plants. Here’s some info https://www.almanac.com/content/protecting-your-garden-frost

Presumably (nothing in nature is certain, right?) there will be a spring, followed by a summer, so there wil be a planting and growing season. For specific advice on how to grow individual vegetables, we suggest that you use the search button near the top left of this page.

We hope this helps (and understand your plight).

Your forecast

Wrong. I'm a trucker. I've seen more unseasonable snow from Weed, California to Seattle, Washington that I've seen in the last 10 years in February alone and where's the end?


Hi. I'm visiting my mom in Eagle Point Oregon. And I was wondering if there would be any snow within an hour radius that we might be able to enjoy ourselves in? I'm also trying to prepare what I'm going to pack for this trip. I know the weather always changes but it's hurts like chance that I might see some snow on the ground?

end of winter

The Editors's picture

Well, it’s right around the corner, of course. We hope. It had better be.

Yes, while it is still officially winter, everyone is ready for spring. But think of this…if there comes a time when there is no winter, no snow, no cold… Well, let’s hope that doesn’t happen.

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