National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the West Coast through Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy 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 ENE Lolo Pass OR

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Tonight

Heavy Rain Chance for Measurable Precipitation 100%

Heavy
Rain

Low: 38 °F

Sunday

Rain Chance for Measurable Precipitation 100%

Rain

High: 40 °FFalling Temperatures

Sunday
Night

Snow Chance for Measurable Precipitation 100%

Snow

Low: 33 °F

Monday

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

High: 39 °F

Monday
Night

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

Low: 34 °F

Tuesday

Chance Rain Chance for Measurable Precipitation 40%

Chance
Rain

High: 40 °F

Tuesday
Night

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

Low: 30 °F

Wednesday

Snow

Snow

High: 34 °F

Wednesday
Night

Chance Snow

Chance
Snow

Low: 24 °F

Detailed Forecast

  • Tonight Rain. The rain could be heavy at times. Low around 38. Windy, with a west southwest wind 36 to 40 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New precipitation amounts between 3 and 4 inches possible.
  • Sunday Rain. The rain could be heavy at times. Temperature rising to near 40 by 11am, then falling to around 36 during the remainder of the day. Windy, with a west wind 33 to 39 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
  • Sunday Night Snow. Low around 33. Windy, with a west wind 25 to 33 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
  • Monday A chance of snow before 4pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. West wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
  • Monday Night A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 34. West northwest wind around 11 mph.
  • Tuesday A 40 percent chance of rain. Partly sunny, with a high near 40.
  • Tuesday Night A chance of rain. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
  • Wednesday Snow. Cloudy, with a high near 34.
  • Wednesday Night A chance of snow showers. Mostly cloudy, with a low around 24.
  • Christmas Day A slight chance of snow showers. Partly sunny, with a high near 29.
  • Thursday Night A slight chance of snow showers. Mostly cloudy, with a low around 23.
  • Friday Mostly sunny, with a high near 31.
  • Friday Night Mostly cloudy, with a low around 25.
  • Saturday A chance of snow. Partly sunny, with a high near 30.