2018 Long Range Weather Forecast for Portland, ME


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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

SEPTEMBER 2017: temperature 60° (1° above avg.); precipitation 4" (avg.); Sep 1-8: Scattered showers, cool; Sep 9-10: Sunny, warm; Sep 11-16: T-storms, then sunny, chilly; Sep 17-20: A few showers, mild; Sep 21-25: Showers, cool; Sep 26-30: T-storms, warm.

OCTOBER 2017: temperature 44° (4° below avg.); precipitation 3.5" (avg.); Oct 1-9: Scattered showers, cool; Oct 10-15: Sunny, cool; Oct 16-25: Showers, then sunny, cool; Oct 26-31: Rain and snow, then sunny, cool.

Annual Weather Summary: November 2017 to October 2018

Map showing Old Farmer's Almanac long range weather region number 1

About the Northeast Region

The Northeast long range weather region includes all or part of the following states: CONNECTICUT (Canaan, North Granby, Sharon Valley, West Cornwall, Winsted), MAINE (Auburn, Bangor, Lewiston, Portland, South Portland), MASSACHUSETTS (Chicopee, Haverhill, Lawrence, Lowell, Springfield), NEW HAMPSHIRE (Concord, Dover, Manchester, Nashua, Rochester), NEW JERSEY (Colesville, Glenwood, McAfee, Sussex, Wantage), NEW YORK (Albany, Poughkeepsie, Schenectady, Troy, Utica), VERMONT (Barre, Bennington, Burlington, Rutland, South Burlington).

Northeast Neighboring Regions

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

Temperature and Precipitation November 2017 to October 2018

Temperature and Precipitation Graph