2017 Long Range Weather Forecast for Harlem, MT

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How to Read Long-Range Weather Forecasts

Long-range predictions show weather trends in temperatures and precipitation. For example, will the winter be colder or warmer than average? Will there be more or less snow than what's typical for your area?  Our famous predictions (traditionally 80% accurate) are made 18 months in advance, and meant to help you make more informed decisions for long-term planning.

Here on Almanac.com, we provide free long-range forecasts for the next 30 to 60 days covering U.S. and Canadian regions. Find all 12 months of predictions in the annual Old Farmer's Almanac.

Free 2-Month Weather Forecast

JULY 2017: temperature 69° (3° below avg.); precipitation 1.5" (0.5" below avg.); Jul 1-6: Sunny north, t-storms south; hot; Jul 7-15: Showers, cool; Jul 16-23: Isolated t-storms; cool, then hot; Jul 24-27: T-storms, turning cool; Jul 28-31: Sunny, cool.

AUGUST 2017: temperature 70° (1° below avg.); precipitation 1.5" (0.5" below avg.); Aug 1-4: Showers; hot, then cool; Aug 5-8: T-storms north; sunny, hot south; Aug 9-16: Scattered t-storms, turning cool; Aug 17-21: Sunny, hot north; t-storms, cool south; Aug 22-27: T-storms, then sunny, cool; Aug 28-31: Showers, cool.

Annual Weather Summary: November 2016 to October 2017

Winter will be colder than normal in the north, warmer in the south. The coldest periods will be in early and late December and early and mid- to late January. Precipitation will be slightly above normal in the north and below normal in the south. Snowfall will be above normal in the north and below normal elsewhere, with the snowiest periods in late November, mid- to late December, and mid- to late February.

April and May will be warmer than normal, with precipitation a bit above normal.

Summer will be cooler than normal, with slightly below-normal rainfall. The hottest periods will be in early July and early and mid- to late August.

September and October will have near-normal precipitation, with temperatures below normal in the north and near normal in the south.

Map showing Old Farmer's Almanac long range weather region number 12

About the High Plains Region

The High Plains long range weather region includes all or part of the following states: COLORADO (Aurora, Colorado Springs, Denver, Greeley, Pueblo), KANSAS (Colby, Dodge City, Garden City, Liberal, Ulysses), MONTANA (Billings, Great Falls, Havre, Laurel, Miles City), NEBRASKA (Alliance, Kearney, Lexington, North Platte, Scottsbluff), NEW MEXICO (Clayton, Clovis, Portales, Raton, Tucumcari), NORTH DAKOTA (Bismarck, Dickinson, Mandan, Minot, Williston), OKLAHOMA (Beaver, Boise City, Goodwell, Guymon, Hooker), SOUTH DAKOTA (Belle Fourche, Pierre, Rapid City, Spearfish, Sturgis), TEXAS (Amarillo, Borger, Dumas, Hereford, Pampa), WYOMING (Casper, Cheyenne, Cody, Gillette, Sheridan).

High Plains Neighboring Regions

Here are the regions that neighbor the High Plains long range weather region:

Temperature and Precipitation November 2016 to October 2017

Temperature and Precipitation Graph