National Weather Service United States Department of Commerce

Heavy snow forecast for parts of Upper Midwest and western Great Lakes

A cold air mass behind a cold front will bring below-normal temperatures across much of the eastern and northern U.S. on Wednesday and allow for snow, heavy at times, to develop across parts of the Upper Midwest and western Great Lakes, mainly from central Minnesota to northern Michigan. Winter Storm Warnings and Winter Weather Advisories are in effect across the region.
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Current Conditions

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3 Miles NW Mount St Helens WA

7 Day Forecast

Portland, OR

NWS Weather Forecast Office

This
Afternoon

Rain Chance for Measurable Precipitation 80%

Rain

High: 45 °F

Tonight

Rain Chance for Measurable Precipitation 80%

Rain

Low: 40 °F

Thursday

Rain Chance for Measurable Precipitation 100%

Rain

High: 47 °F

Thursday
Night

Rain Chance for Measurable Precipitation 80%

Rain

Low: 35 °F

Friday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 52 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 35 °F

Saturday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 56 °F

Saturday
Night

Chance Showers

Chance
Showers

Low: 36 °F

Sunday

Slight Chance Showers

Slight Chc
Showers

High: 52 °F

Detailed Forecast

  • This Afternoon Rain. High near 45. Southwest wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
  • Tonight Rain. Low around 40. South wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Thursday Rain. High near 47. South southwest wind 3 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
  • Thursday Night Rain showers. Low around 35. West southwest wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
  • Friday A 20 percent chance of snow showers before 11am. Partly sunny, with a high near 52. West wind around 8 mph.
  • Friday Night Partly cloudy, with a low around 35.
  • Saturday A 50 percent chance of rain. Mostly cloudy, with a high near 56.
  • Saturday Night A chance of showers. Cloudy, with a low around 36.
  • Sunday A slight chance of showers. Mostly cloudy, with a high near 52.
  • Sunday Night A slight chance of showers. Mostly cloudy, with a low around 37.
  • Monday A chance of showers. Mostly cloudy, with a high near 49.
  • Monday Night A chance of showers. Mostly cloudy, with a low around 36.
  • Tuesday A chance of showers. Mostly cloudy, with a high near 48.

 

Additional Forecasts and Information

Zone Area Forecast for South Washington Cascades, WA