2018 Long Range Weather Forecast for Sun Valley, NV

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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.

Free 2-Month Weather Forecast

October 2018 Long Range Weather Forecast for Intermountain
DatesWeather Conditions
Oct 1-5A few showers, cool
Oct 6-12Sunny, warm
Oct 13-20Showers north, sunny south; warm
Oct 21-26Rain, then snow north; sunny, mild south
Oct 27-31Snowstorm
Octobertemperature 52° (1° above avg.)
precipitation 1" (avg.)

November 2018 Long Range Weather Forecast for Intermountain
DatesWeather Conditions
Nov 1-9Rainy north, sunny south; mild
Nov 10-15Rain and snow, cold
Nov 16-20Showers, cool
Nov 21-24Rainy, mild
Nov 25-30Rain and snow north; snow, then sunny south
Novembertemperature 43° (3° above avg.)
precipitation 2.5" (1" above avg.)

Annual Weather Summary
November 2018 to October 2019

Winter temperatures and precipitation will be above normal, on average, with the coldest periods in late December, early January, and early February. Snowfall will be above normal in the north and below normal in the south, with the snowiest periods in late November, late December, early and late January, mid- to late February, and early March. April and May will have temperatures below normal in the north and above normal in the south and will be slightly drier than normal. Summer will be hotter and slightly drier than normal, with the hottest periods in mid- and late June and mid- to late July. September and October will be warmer than normal, with near-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 2018 to October 2019

Temperature and Precipitation Chart, November 2018 to October 2019 for Sun Valley, NV

Reader Comments

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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

Snowstorm

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

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?

Utah

Hello.
I was wondering what northern Utah (Ogden) area will be this winter. Will we finally get snow this year??

Thanks for all of your great

Thanks for all of your great work! Then you say they're will be below normal snow fall and higher than usual temperatures in the South, does this include Central Utah?

Utah

Yes, that would include Central Utah! Thanks for your kind words!

Forecasting will become more like 50%

Unfortunately, we are past the tipping point, and due to the historical models that relied on the reflective properties that reflected th e suns radiation is all but gone for months at a time. I hate yo say it, but I fear the long term forecasts that rely on historical trends will cause annual releases with quarterly updates to take count of global events from melting ice, volcanic debris, and more frequent "large" fires that locally add a smoke layer that also maintains heat.

I love your work guys, any insight on your expected challenges?

Just curious. Thanks

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