2017 Long Range Weather Forecast for Mill Creek, WA

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Complete 2017 Long Range Weather Forecast for the Pacific Northwest Region, November 2016 to October 2017 includes week-by-week details. Instant access via digital download!

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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

MAY 2017: temperature 58° (3° above avg.); precipitation 1.5" (0.5" below avg.); May 1-7: Showers, then sunny, warm; May 8-15: Rainy periods, cool; May 16-21: Sunny, turning hot; May 22-31: Sunny, warm.

JUNE 2017: temperature 61° (1° above avg.); precipitation 1.5" (avg.); Jun 1-3: Rainy, cool; Jun 4-8: Showers, cool; Jun 9-12: Sunny, warm; Jun 13-18: Showers, cool; Jun 19-30: Sunny, turning warm.

Annual Weather Summary: November 2016 to October 2017

Winter will be rainier than normal. Temperatures will be below normal in the north and above normal in the south, with the coldest periods in early and mid- to late December and mid- to late January. Snowfall will be above normal in the north and below normal in the south, with the snowiest periods in early December and mid-January.

April and May will be slightly warmer and drier than normal.

Summer will be warmer and rainier than normal, with the hottest temperatures in late June and early to mid-July, from late July into early August, and in mid- to late August.

September and October will be cooler than normal, with near-normal rainfall.

Map showing Old Farmer's Almanac long range weather region number 15

About the Pacific Northwest Region

The Pacific Northwest long range weather region includes all or part of the following states: CALIFORNIA (Arcata, Eureka, Fortuna, McKinleyville, Yreka), OREGON (Beaverton, Eugene, Gresham, Portland, Salem), WASHINGTON (Bellevue, Everett, Seattle, Tacoma, Vancouver).

Pacific Northwest Neighboring Regions

Here are the regions that neighbor the Pacific Northwest long range weather region:

Temperature and Precipitation November 2016 to October 2017

Temperature and Precipitation Graph