2019-2020 Long Range Weather Forecast for Idaho Falls, ID

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

December 2019 Long Range Weather Forecast for Intermountain
DatesWeather Conditions
Dec 1-10Periods of rain and snow north, sunny south; mild
Dec 11-15Rain and snow showers, mild
Dec 16-25Snowy periods, cold
Dec 26-31Snowy north, sunny south; turning milder
Decembertemperature 33° (3° above avg. north, 3° below south)
precipitation 1.5" (avg.)

January 2020 Long Range Weather Forecast for Intermountain
DatesWeather Conditions
Jan 1-7Snowstorm, then flurries, cold
Jan 8-13Sunny, mild
Jan 14-19Snowy periods north, sunny south; mild
Jan 20-24Snow showers, cold
Jan 25-31Snowy periods, cold
Januarytemperature 30° (2° below avg.)
precipitation 1.5" (1" above avg. north, 0.5" below south)

Annual Weather Summary
November 2019 to October 2020

Winter temperatures will be above normal, on average, in the north and below average in central and southern portions of the region, with the coldest periods in mid- to late December and early January and from late January through the first half of February. Precipitation and snowfall will be above normal, with the snowiest periods in mid- to late December, early and late January, early February, and early and late March. April and May will be cooler than normal, with near-normal precipitation. Summer will be slightly cooler and rainier than normal, with the hottest period from late June through early July. September and October will be warmer than normal, with below-normal precipitation.

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, Kayenta, Page, Tuba City, Winslow), CALIFORNIA (Cedarville, Davis Creek, Eagleville, Fort Bidwell, Lake City), COLORADO (Aurora, Colorado Springs, Denver, Fort Collins, Lakewood), IDAHO (Boise, Idaho Falls, Meridian, Nampa, Pocatello), MONTANA (Bozeman, Butte, Helena, Kalispell, Missoula), NEVADA (Carson City, Elko, Reno, Sparks, Sun Valley), NEW MEXICO (Angel Fire, Chama, Dulce, Questa, Springer), OREGON (Hermiston, La Grande, Ontario, Pendleton, The Dalles), UTAH (Ogden, Orem, Provo, Salt Lake City, West Valley City), WASHINGTON (Kennewick, Pasco, Richland, Spokane, Yakima), WYOMING (Casper, Evanston, Green River, Laramie, Rock Springs).

Intermountain Neighboring Regions

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

Temperature and Precipitation November 2019 to October 2020

Temperature and Precipitation Chart, November 2019 to October 2020 for Idaho Falls, ID

Reader Comments

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Nampa

Does anyone know if Nampa will get a lot of snow this season?

Nampa

We will have a bitter cold forecasted for late December and long periods of heavy snow.

Sept 5th through 7th

Planning a wedding the 2nd weekend of September in Bigfork, Montana. Sept 5-7th 2019. What will the average temperature be? and rain fall?

Mild Maybe

I hope you folks are correct (usually are:) which means I will hopefully see a relatively mild winter this year- last year was brutal here in SW Bozeman, MT... my van was froze to the pavement most of last winter (an unusually abundant amount of ice) :/ I will be looking forward to relatively better weather this year, tytyty. :D

Sorry, I don't agree. I am

Sorry, I don't agree. I am dismayed that the temperatures are getting warmer. We need a good winter with lots of snowfall!

Snowstorm

Up in the mountains at Alta ski area is gonna snow only after 25 Oct?
In cottonwood heights?

Funny!

Funny - Forecast was Warm + sunny, and it dumped 15+" in Alta during Oct 7-12.

snow

sorry, I'm in ALAMOSA COLORADO

SNOW

i am wondering what our snowfall will be this year

Winter

I was wondering if you could tell me if Twin Falls, ID is going to have a snowy winter this year?

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