National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. on Saturday

Another Pacific system will impact the West Coast today. Heavy rainfall could lead to flash flooding, river and small stream flooding as well as mudslides and debris flows, especially over burn scars. Strong winds and heavy elevation snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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Current Conditions

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3 Miles E Mount St Helens WA

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Today

Heavy Rain Chance for Measurable Precipitation 100%

Heavy
Rain

High: 43 °F

Tonight

Heavy Rain Chance for Measurable Precipitation 100%

Heavy
Rain

Low: 40 °F

Sunday

Rain Chance for Measurable Precipitation 100%

Rain

High: 44 °F

Sunday
Night

Rain Chance for Measurable Precipitation 90%

Rain

Low: 38 °F

Monday

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

High: 44 °F

Monday
Night

Chance Rain Chance for Measurable Precipitation 40%

Chance
Rain

Low: 37 °F

Tuesday

Rain Likely Chance for Measurable Precipitation 60%

Rain
Likely

High: 42 °F

Tuesday
Night

Rain Likely

Rain
Likely

Low: 32 °F

Wednesday

Snow Likely

Snow
Likely

High: 38 °F

Detailed Forecast

  • Today Rain. The rain could be heavy at times. High near 43. South wind around 17 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
  • Tonight Rain. The rain could be heavy at times. Low around 40. South southwest wind 16 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
  • Sunday Rain. High near 44. Breezy, with a west wind 22 to 26 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
  • Sunday Night Rain. Low around 38. Breezy, with a west wind 15 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
  • Monday A chance of snow before 4pm, then a chance of rain and snow. Mostly cloudy, with a high near 44. West southwest wind 5 to 9 mph becoming calm in the morning. Chance of precipitation is 40%. Little or no snow accumulation expected.
  • Monday Night A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 37.
  • Tuesday Rain likely. Mostly cloudy, with a high near 42. Chance of precipitation is 60%.
  • Tuesday Night Rain likely. Cloudy, with a low around 32.
  • Wednesday Snow likely. Cloudy, with a high near 38.
  • Wednesday Night Snow showers likely. Mostly cloudy, with a low around 27.
  • Christmas Day A chance of snow showers. Partly sunny, with a high near 36.
  • Thursday Night A slight chance of snow showers. Mostly cloudy, with a low around 27.
  • Friday Mostly sunny, with a high near 36.