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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5 Miles ESE Mount St Helens WA

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Late
Afternoon

Heavy Rain Chance for Measurable Precipitation 100%

Heavy
Rain

High: 44 °F

Tonight

Heavy Rain Chance for Measurable Precipitation 100%

Heavy
Rain

Low: 42 °F

Sunday

Rain Chance for Measurable Precipitation 100%

Rain

High: 47 °F

Sunday
Night

Rain Chance for Measurable Precipitation 90%

Rain

Low: 41 °F

Monday

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

High: 47 °F

Monday
Night

Chance Rain Chance for Measurable Precipitation 40%

Chance
Rain

Low: 38 °F

Tuesday

Rain Likely Chance for Measurable Precipitation 60%

Rain
Likely

High: 43 °F

Tuesday
Night

Rain Likely

Rain
Likely

Low: 35 °F

Wednesday

Rain Likely

Rain
Likely

High: 41 °F

Detailed Forecast

  • Late Afternoon Rain. The rain could be heavy at times. High near 44. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
  • Tonight Rain. The rain could be heavy at times. Low around 42. South southwest wind 13 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
  • Sunday Rain. High near 47. West wind 15 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
  • Sunday Night Rain. Low around 41. West wind 10 to 15 mph becoming light in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
  • Monday A chance of rain before 10am, then a chance of rain and snow. Mostly cloudy, with a high near 47. West southwest wind around 6 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 38.
  • Tuesday Rain likely. Mostly cloudy, with a high near 43. Chance of precipitation is 60%.
  • Tuesday Night Rain likely. Cloudy, with a low around 35.
  • Wednesday Rain likely. Cloudy, with a high near 41.
  • Wednesday Night Snow showers likely. Mostly cloudy, with a low around 30.
  • Christmas Day A chance of snow showers. Partly sunny, with a high near 42.
  • Thursday Night A slight chance of snow showers. Mostly cloudy, with a low around 29.
  • Friday Mostly sunny, with a high near 41.
  • Friday Night Partly cloudy, with a low around 28.
  • Saturday A chance of snow. Partly sunny, with a high near 41.