National Weather Service United States Department of Commerce

Warmup expected in the East, cooler weather forecast across parts of West

Much of the eastern U.S. will see a significant warming trend beginning on Friday, with high temperatures as much as 10-15 degrees warmer than on Thursday. The warming trend will continue into the weekend. Meanwhile, temperatures will be on the decrease across much of the northern Plains and Intermountain West over the next several days.
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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

Tonight

Snow Chance for Measurable Precipitation 100%

Snow

Low: 20 °F

Saturday

Snow Chance for Measurable Precipitation 80%

Snow

High: 24 °FFalling Temperatures

Saturday
Night

Mostly Clear

Mostly
Clear

Low: 18 °FRising Temperatures

Sunday

Sunny

Sunny

High: 27 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 25 °F

Monday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 32 °F

Monday
Night

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: 24 °F

Tuesday

Slight Chance Snow

Slight Chc
Snow

High: 33 °F

Tuesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 29 °F

Detailed Forecast

  • Tonight Snow showers. Low around 20. Breezy, with a west wind 18 to 25 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.
  • Saturday Snow showers, mainly before 10am. Temperature falling to around 18 by 5pm. West wind around 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
  • Saturday Night Mostly clear, with a temperature rising to around 21 by 3am. Light and variable wind becoming east 5 to 10 mph in the evening.
  • Sunday Sunny, with a high near 27. East wind around 16 mph, with gusts as high as 21 mph.
  • Sunday Night Partly cloudy, with a low around 25. East wind 11 to 16 mph, with gusts as high as 21 mph.
  • Monday A 50 percent chance of snow. Mostly cloudy, with a high near 32. Little or no snow accumulation expected.
  • Monday Night A 50 percent chance of snow. Mostly cloudy, with a low around 24. Little or no snow accumulation expected.
  • Tuesday A slight chance of snow showers. Partly sunny, with a high near 33.
  • Tuesday Night Mostly cloudy, with a low around 29.
  • Wednesday A slight chance of snow showers. Mostly cloudy, with a high near 36.
  • Wednesday Night A chance of snow. Cloudy, with a low around 30.
  • Thursday A chance of snow. Cloudy, with a high near 35.
  • Thursday Night Snow likely. Cloudy, with a low around 30.
  • Friday A chance of snow. Cloudy, with a high near 36.