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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Chinook Pass WA

7 Day Forecast

For More Weather Information:

Pendleton, OR Local Forecast Office

Tonight

Rain/Snow Chance for Measurable Precipitation 100%

Rain/Snow

Low: 34 °F

Sunday

Rain/Snow Chance for Measurable Precipitation 100%

Rain/Snow

High: 34 °FFalling Temperatures

Sunday
Night

Snow Chance for Measurable Precipitation 80%

Snow

Low: 29 °F

Monday

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

High: 33 °F

Monday
Night

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

Low: 31 °F

Tuesday

Chance Rain

Chance
Rain

High: 36 °F

Tuesday
Night

Snow Likely

Snow
Likely

Low: 30 °F

Wednesday

Snow Likely

Snow
Likely

High: 32 °F

Wednesday
Night

Chance Snow

Chance
Snow

Low: 23 °F

Detailed Forecast

  • Tonight Rain before 4am, then rain and snow. The rain could be heavy at times. Steady temperature around 34. West wind 16 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
  • Sunday Rain and snow. Temperature falling to around 31 by 4pm. Breezy, with a west wind 17 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
  • Sunday Night Snow. Low around 29. West wind 11 to 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
  • Monday A 40 percent chance of snow. Mostly cloudy, with a high near 33. West wind 7 to 11 mph.
  • Monday Night A chance of snow. Mostly cloudy, with a low around 31. Southwest wind around 6 mph. Chance of precipitation is 40%.
  • Tuesday A chance of rain. Mostly cloudy, with a high near 36.
  • Tuesday Night Snow likely. Cloudy, with a low around 30.
  • Wednesday Snow likely. Cloudy, with a high near 32.
  • Wednesday Night A chance of snow. Mostly cloudy, with a low around 23.
  • Christmas Day A chance of snow. Partly sunny, with a high near 27.
  • Thursday Night Partly cloudy, with a low around 19.
  • Friday Partly sunny, with a high near 28.
  • Friday Night A slight chance of snow. Mostly cloudy, with a low around 25.
  • Saturday A chance of snow. Partly sunny, with a high near 27.