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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9 Miles SSW Sumpter OR

7 Day Forecast

For More Weather Information:

Boise, ID Local Forecast Office

Today

Rain Chance for Measurable Precipitation 90%

Rain

High: 45 °F

Tonight

Rain/Snow Likely Chance for Measurable Precipitation 70%

Rain/Snow
Likely

Low: 36 °F

Monday

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

High: 43 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 24 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 44 °F

Tuesday
Night

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 29 °F

Wednesday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 41 °F

Wednesday
Night

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: 23 °F

Christmas
Day

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

High: 28 °F

Detailed Forecast

  • Today Rain. High near 45. West northwest wind 10 to 14 mph. Chance of precipitation is 90%.
  • Tonight Rain and snow likely. Cloudy, with a low around 36. West northwest wind 6 to 9 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
  • Monday A chance of rain and snow. Partly sunny, with a high near 43. West northwest wind around 6 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
  • Monday Night Partly cloudy, with a low around 24. Calm wind.
  • Tuesday Mostly sunny, with a high near 44. Calm wind.
  • Tuesday Night A 20 percent chance of showers. Mostly cloudy, with a low around 29.
  • Wednesday A chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.
  • Wednesday Night Snow likely. Cloudy, with a low around 23. Chance of precipitation is 60%.
  • Christmas Day A 30 percent chance of snow. Partly sunny, with a high near 28.
  • Thursday Night A 20 percent chance of snow showers. Mostly cloudy, with a low around 13.
  • Friday A 20 percent chance of snow. Mostly cloudy, with a high near 30.
  • Friday Night A 20 percent chance of snow. Mostly cloudy, with a low around 17.
  • Saturday A 20 percent chance of snow showers. Mostly cloudy, with a high near 30.