National Weather Service United States Department of Commerce

Stormy weather expected for the Pacific Northwest and Intermountain West

An impressive frontal system will continue moving through the Pacific Northwest and the Intermountain West and slowly make its way south. Behind it very cold Arctic air will follow. Higher elevation snow and moderate rainfall can be expected throughout these regions along with strong winds.
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Current Conditions

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Mount St Helens WA

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Today

Snow Chance for Measurable Precipitation 100%

Snow

High: 41 °F

Tonight

Snow Chance for Measurable Precipitation 100%

Snow

Low: 21 °F

Saturday

Snow Chance for Measurable Precipitation 80%

Snow

High: 24 °F

Saturday
Night

Mostly Clear

Mostly
Clear

Low: 18 °F

Sunday

Sunny

Sunny

High: 29 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 25 °F

Monday

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

High: 34 °F

Monday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 24 °F

Tuesday

Slight Chance Snow

Slight Chc
Snow

High: 35 °F

Detailed Forecast

  • Today Snow. High near 41. West southwest wind 16 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Total daytime snow accumulation of around an inch possible.
  • Tonight Snow showers. Low around 21. West wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
  • Saturday Snow showers. High near 24. West wind around 9 mph becoming north northwest in the afternoon. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
  • Saturday Night Mostly clear, with a low around 18. East wind around 15 mph, with gusts as high as 24 mph.
  • Sunday Sunny, with a high near 29. East wind around 17 mph, with gusts as high as 28 mph.
  • Sunday Night Partly cloudy, with a low around 25.
  • Monday A 30 percent chance of snow. Mostly cloudy, with a high near 34. Little or no snow accumulation expected.
  • Monday Night Mostly cloudy, with a low around 24.
  • Tuesday A slight chance of snow showers. Partly sunny, with a high near 35.
  • Tuesday Night Mostly cloudy, with a low around 29.
  • Wednesday A slight chance of snow showers. Mostly cloudy, with a high near 38.
  • Wednesday Night A chance of snow. Cloudy, with a low around 30.
  • Thursday A chance of snow. Mostly cloudy, with a high near 37.