2018 Long Range Weather Forecast for Flagstaff, AZ

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

Note: Long range forecasts are regional, not city-specific. If your city is located inside a region, the region's forecast will apply to you.

Free 2-Month Weather Forecast

April 2018 Long Range Weather Forecast for Intermountain
DatesWeather Conditions
Apr 1-5Sunny, mild
Apr 6-13Rain and snow showers, chilly
Apr 14-21Sunny, turning warmer
Apr 22-30Showers north, periods of rain and snow south; cool
Apriltemperature 48° (1° below avg.)
precipitation 1" (avg.)

May 2018 Long Range Weather Forecast for Intermountain
DatesWeather Conditions
May 1-12A few showers, warm
May 13-21T-storms, then sunny, cool
May 22-28Scattered t-storms, cool
May 29-31Sunny
Maytemperature 60° (3° above avg.)
precipitation 0.5" (0.5" below avg.)

Annual Weather Summary: November 2017 to October 2018

Winter will be colder than normal, especially in the south, with the coldest periods from late November into early December and in late December, mid-January, and early February. Precipitation will be slightly below normal in the north and above in the south, with above-normal snowfall in both. The snowiest periods will be in early and mid- to late December, mid-January, early and mid-February, and early March. April and May will be warmer and slightly drier than normal. Summer will be drier than normal, with temperatures warmer than normal in the north and cooler in the south. The hottest periods will be in late June, early and late July, and early and late August. September and October will be cooler than normal, with above-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 2017 to October 2018

Temperature and Precipitation Graph

Reader Comments

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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..

Snowed “south hill” Spokane

Cold, lighter snow less then 1/4 inch, just a dusting all around the area today. Currently 32* with high of 42* expected.

Under 4 feet of snow here

North Idaho, Mar 5,2018, 13f last night, 4ft snow on ground, snowed 1 inch last night. We has rain and sping like conditions 3 weeks ago only to get hammered with more snow.

Looks right to me.

In my area this is completely accurate. I love the Farmer's Almanac and have relied on it for decades. Thanks!

Feb weather

if I read this right it shows Feb 2018 as a bit warmer than usual?? On Feb 20th we are shattering the record low temp set back in the 50's....tonight's forecast -26.....hurry up summer??

Unusual Prediction

We have been quite dry, and temperatures are very nice for February. Maybe next week we will see snow? Maybe a false snow. Dare climate change, too bad it can't be predicted more accurately. If that were the case, there would be many meteorologists out of jobs.

Wrong

Extremely rare to have an accurate weather forecast. Best to look at Doppler radar yourself and forcast your own weather. Thanks for listening.

Region 13

Reno looks to be in the middle of region 13, so are we north or south?

Sorry but.... Wrong.

Yea I would be great if winter was like this, but it's January 18th and 51°f outside and we haven't had snow scince Christmas, and even then it wasn't much. Interesting prediction but incorrect, mabey next year.

Wrong...

Dear "sorry but wrong",
Look out your window.
Sincerely,
Shoveling driveway..