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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9 Miles W Mount St Helens WA

7 Day Forecast

Portland, OR

NWS Weather Forecast Office

Today

Rain Chance for Measurable Precipitation 90%

Rain

High: 44 °F

Tonight

Rain Chance for Measurable Precipitation 80%

Rain

Low: 44 °F

Thursday

Rain Chance for Measurable Precipitation 100%

Rain

High: 43 °F

Thursday
Night

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

Low: 33 °F

Friday

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

High: 48 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 33 °F

Saturday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 52 °F

Saturday
Night

Chance Showers

Chance
Showers

Low: 36 °F

Sunday

Slight Chance Showers

Slight Chc
Showers

High: 48 °F

Detailed Forecast

  • Today Rain. High near 44. South southwest wind 6 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Tonight Rain. Steady temperature around 44. South wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Thursday Rain. High near 43. South southwest wind 3 to 6 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
  • Thursday Night Rain showers likely, mainly before 11pm. Cloudy, with a low around 33. Southwest wind 8 to 11 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
  • Friday A slight chance of rain and snow showers before 11am. Partly sunny, with a high near 48. West wind 7 to 9 mph. Chance of precipitation is 20%.
  • Friday Night Partly cloudy, with a low around 33.
  • Saturday A 50 percent chance of rain. Mostly cloudy, with a high near 52.
  • Saturday Night A chance of showers. Cloudy, with a low around 36.
  • Sunday A slight chance of showers. Mostly cloudy, with a high near 48.
  • Sunday Night A slight chance of showers. Mostly cloudy, with a low around 35.
  • Monday A chance of showers. Mostly cloudy, with a high near 45.
  • Monday Night A chance of showers. Mostly cloudy, with a low around 34.
  • Tuesday A chance of showers. Mostly cloudy, with a high near 44.

 

Additional Forecasts and Information

Zone Area Forecast for South Washington Cascades, WA