2019-2020 Long Range Weather Forecast for Boise, 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

September 2019 Long Range Weather Forecast for Intermountain
DatesWeather Conditions
Sep 1-5Showers, cool north; sunny, hot south
Sep 6-9Sunny, cool
Sep 10-18Sunny, warm north; scattered t-storms, cool south
Sep 19-24Isolated t-storms, warm
Sep 25-30Sunny, chilly
Septembertemperature 62° (avg.)
precipitation 0.5" (0.5" below avg.)

October 2019 Long Range Weather Forecast for Intermountain
DatesWeather Conditions
Oct 1-5A few showers, cool
Oct 6-13Sunny, warm
Oct 14-19Sunny north, showers south; warm
Oct 20-23Showers north, snowstorm south
Oct 24-31Rainy periods, cool
Octobertemperature 53° (2° above avg.)
precipitation 1.5" (0.5" above avg.)

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 Boise, ID

Reader Comments

Leave a Comment

May is very False and Untrue

We are in St. George Utah which is in intermountain South region. Right now up until May 22 we are suppose to be every day 15-20 degrees below normal and have chance of precip. everyday. Your prediction states we are suppose to be approx. 4 degrees above normal for the month of May Very Untrue

Comments

Almanac.com should remove the comments section. People only use it to complain, and honestly nobody using this site should be complaining. Nobody cares about their ridiculous complaints. They should use their freedom of choice to use another, far less accurate site, try being an active jacka$$ about social issues instead. Everyone thinks they should have a platform to release all their nonsense and/or ruin someone else's whole day. Get a grip people everything you think does not need to be known by all. Weather is hard to predict, if is inaccurate stay in bed until it's the way you want it.

Such complaining

My gosh, what's with all the complaints?! The OFA does a pretty decent job, but weather is not 100% predictable, and if you don't care for the site then just browse somewhere else. They do a lot better than most other sources. And it is a lot of work to put together so many long range forecasts, and two months for free. I think thats pretty good. I don't see any of the main stream weather sources putting out predictions months in advance. Geez people have become so spoiled and complain way too much, it gets so old!! I think The Old Farmer's Almanac is doing a great job!!!!

Thumbs UP!

Thanks for being appreciative and positive! We need more people with your great attitude!

Hey Shana

Sorry didn't mean to reply to your comment, I meant to hit leave comment. Nothing I said was in direct relation to your comment. Oops

Amen to that!

Preach on, Shanna!!!
There should be an app or a browser setting that would allow you to "disable comments" on any, all, or selected websites. If I made it, I'd call it the "Jackass Blocker" ... LOL!

With all these "keyboard warriors" and the "Negative Nancy" types on the internet nowadays, it's no wonder our societies are what they are.

Shameful to make such complaints and negative comments on a site like this ... specifically, pertaining to an article that is titled a "prediction of weather." Seeing as though it is an article PREDICTING weather over such a long period of time, AND the territory/region of which this prediction is for ... I'm totally impressed!!!!! So many of the cities listed in this region fall in the old adage of, "if you dont like the weather now, just wait 10/30/45 minutes." I live in Spokane, WA and have lived in Albuquerque, NM and traveled throughout this region and I think that trying to find any solid geographical common denominator from 1 city to the next would be difficult!! Then trying to predict the annual weather/climate patterns for such a variety of terrains?!!?!?!?! Mind blowing if you ask me!
I feel that for our region up here, their prediction from November 2018 to present day (July 13) is VERY ACCURATE! Theres a month or two in there that didnt happen exactly as they predicted ... but NEVER would I gripe and complain about it! Especially since that month or two may not have been spot-on outside my front door, but were probably spot on for another location in the ENTIRE REGION!!!!!!!

Local news weather anchors aren't even accurate 100% of the time trying to predict just the NEXT DAY'S forecast IN THEIR IMMEDIATE AREA.

UGH ...
PEOPLE.

Comment complaints

Thank you for your complaints about complaints in the comment section. Made my day.

Coming late to the conversation

So most definitely typed the wrong date by accident but as far as my area ended up pretty accurate to the projection, yeah some of the dates were off and it made it sound a bit different then it actually was. That being said the order in which the weather changed was exactly the same and the dates somewhat align with what was predicted.

Chart vs Verbiage Predictions

Looking at February >>> Your Chart shows no precip of note and your verbiage up above states snowiest in Mid/Late February. Well. Oopsy on the chart because your verbiage is correct. Idaho and Western MT breaking all kinds of snow records. :) Might want to line up your chart and verbiage next time. :) I'm sure it was just an oversight.

precip chart

The Editors's picture

Donna, the charts for each region correspond with the monthly predictions for the region in temp and precip; it is a visual representation. For February, we predicted “(avg.)” precip. On the chart, that is represented as a flat line/nothing above or below the line. The precip does not include snow, btw, either. We did predict above-normal snowfall in northern portions of this region for the season, so so far, pretty good, it sounds like. Thanks for your comments.

Pages