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 Pacific Northwest through late 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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4 Miles SW Lolo Pass OR

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

This
Afternoon

Rain Chance for Measurable Precipitation 100%

Rain

High: 52 °F

Tonight

Rain Chance for Measurable Precipitation 100%

Rain

Low: 41 °F

Monday

Chance Rain Chance for Measurable Precipitation 40%

Chance
Rain

High: 46 °F

Monday
Night

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

Low: 38 °F

Tuesday

Chance Rain Chance for Measurable Precipitation 40%

Chance
Rain

High: 47 °F

Tuesday
Night

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

Low: 36 °F

Wednesday

Rain Chance for Measurable Precipitation 80%

Rain

High: 41 °F

Wednesday
Night

Snow Likely

Snow
Likely

Low: 33 °F

Christmas
Day

Chance Snow

Chance
Snow

High: 38 °F

Detailed Forecast

  • This Afternoon Rain. High near 52. West 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. Low around 41. West wind 5 to 13 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
  • Monday A 40 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 46. West southwest wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.
  • Monday Night A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 38. Light west wind.
  • Tuesday A 40 percent chance of rain. Mostly cloudy, with a high near 47. Calm wind.
  • Tuesday Night Rain likely, mainly after 10pm. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
  • Wednesday Rain. High near 41. Chance of precipitation is 80%.
  • Wednesday Night Snow showers likely. Mostly cloudy, with a low around 33.
  • Christmas Day A chance of snow showers. Mostly cloudy, with a high near 38.
  • Thursday Night A chance of snow showers. Mostly cloudy, with a low around 30.
  • Friday Partly sunny, with a high near 39.
  • Friday Night Mostly cloudy, with a low around 28.
  • Saturday A slight chance of rain and snow. Mostly cloudy, with a high near 38.