2020-2021 Long Range Weather Forecast for Intermountain

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

August 2020 Long Range Weather Forecast for Intermountain
DatesWeather Conditions
Aug 1-7Sunny north, scattered t-storms south; warm
Aug 8-16Showers, cool
Aug 17-20Sunny, warm
Aug 21-28A few showers; cool north, warm south
Aug 29-31Sunny, warm north; rainy, cool south
Augusttemperature 70° (2° below avg.)
precipitation 1.2" (0.2" above avg.)

September 2020 Long Range Weather Forecast for Intermountain
DatesWeather Conditions
Sep 1-9Sunny, warm north; showers south
Sep 10-13Sunny, cool north; showers, warm south
Sep 14-25Sunny, warm
Sep 26-30Showers, turning cool
Septembertemperature 65° (3° above avg.)
precipitation 0.5" (avg. north, 1" below south)

Map showing Old Farmer's Almanac long range weather region number 13

About the Intermountain Region

The Intermountain long range weather region includes all or part of the following states: ARIZONA (Flagstaff), COLORADO (Clifton, Grand Junction, Montrose), IDAHO (Boise, Idaho Falls, Meridian, Nampa, Pocatello), MONTANA (Bozeman, Butte, Helena, Kalispell, Missoula), NEVADA (Carson City, Elko, Reno, Sparks, Sun Valley), OREGON (Hermiston, La Grande, Ontario, Pendleton, The Dalles), UTAH (Orem, Provo, Salt Lake City, Sandy City, West Valley City), WASHINGTON (Kennewick, Pasco, Richland, Spokane, Yakima), WYOMING (Evanston, Green River, Laramie, Rock Springs).

Intermountain Neighboring Regions

Here are the regions that neighbor the Intermountain long range weather region:

Reader Comments

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106°F

The Editors's picture

So right, and that fact may be the factor that reinforces our 80% (not 100%) accuracy rate. Thanks for keeping tabs, especially with an LOL.

On a more serious note, as an article set for the 2020 edition will show, the high temps are due in part to the warmth at the North Pole and surroundings. Thanks again—

Ontario, OR

we are seeing TRIPLE DIGITS. been hot for days, gonna be hot for days

What's winter looking like?

Hey I was wondering what winter 2018-2019 will be looking like for Ontario Oregon. Or malheure county in general

North west Colorado

Temperatures are a little higher than normal here, about 90-95 most days, nights are down to the mid 50's- almost no precipitation. I think it has rained about a total of an hour in the last month and a half. with wildfires happening almost daily it seems, most folks here are harvesting early for fire prevention sake. we can see the rainfall to the north and south of us, but its skipping by us every time. someone do a rain dance for us.

June

I am farming lavender in the Mission Valley 45 miles north of Missoula. My harvest season is over a week late to start compared to previous years because of the cool and very rainy weather. It feels like Portland!

Above Average

States this week it's supposed to be sunny:cool. Our local weather is predicting 101-106F for the next 3 days straight. No relief in sight for the Reno, Nevada area.

A Memorable Memorial Weekend

In Butte, MT we are seeing a first, lilacs opening by Memorial Day; typically have our last snow storm this weekend.

Above Average

Here in Reno, we are seeing 5-10 degrees above normal temps. Today is supposed to hit 90F. We see no clouds, or precipitation in sight.

Flagstaff snow dayz

Got 5” snow May 2, 2018 in Flagstaff AZ. We’re at 7000 ft elev. but on the volcano above they got 2 ft. 80 today, weird weird beginning of spring.

Wisconsin snow April 2010

Wow snow and more snow. parts of Wisconsin look like December instead of April... farmers watching out for birthing calves and others watching the fruit trees and grapes.. will we have Spring only Mother Nature knows for sure..

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