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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8 Miles N Mount St Helens WA

7 Day Forecast

Portland, OR

NWS Weather Forecast Office

Today

Rain/Snow Chance for Measurable Precipitation 80%

Rain/Snow

High: 38 °F

Tonight

Rain Chance for Measurable Precipitation 80%

Rain

Low: 36 °F

Thursday

Rain Chance for Measurable Precipitation 100%

Rain

High: 40 °F

Thursday
Night

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

Low: 31 °F

Friday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 43 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 33 °F

Saturday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 48 °F

Saturday
Night

Chance Showers

Chance
Showers

Low: 31 °F

Sunday

Partly Sunny

Partly
Sunny

High: 45 °F

Detailed Forecast

  • Today Snow before 11am, then rain and snow. High near 38. West southwest wind around 9 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
  • Tonight Rain. Low around 36. West wind 5 to 9 mph becoming south after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Thursday Rain. High near 40. Southwest wind 3 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
  • Thursday Night Snow showers likely, mainly before 11pm. Cloudy, with a low around 31. West southwest wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
  • Friday A 20 percent chance of snow showers before 11am. Partly sunny, with a high near 43. West wind 8 to 10 mph.
  • Friday Night Partly cloudy, with a low around 33.
  • Saturday A 50 percent chance of rain. Mostly cloudy, with a high near 48.
  • Saturday Night A chance of showers. Cloudy, with a low around 31.
  • Sunday Partly sunny, with a high near 45.
  • Sunday Night A slight chance of rain showers. Mostly cloudy, with a low around 33.
  • Monday A chance of rain and snow showers. Mostly cloudy, with a high near 42.
  • Monday Night A chance of showers. Mostly cloudy, with a low around 32.
  • Tuesday A chance of showers. Mostly cloudy, with a high near 41.

 

Additional Forecasts and Information

Zone Area Forecast for South Washington Cascades, WA