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.
Read More...

Current Conditions

En Español

Share |

6 Miles ENE Sumpter OR

7 Day Forecast

For More Weather Information:

Boise, ID Local Forecast Office

Tonight

Rain/Snow Chance for Measurable Precipitation 90%

Rain/Snow

Low: 35 °F

Sunday

Rain Chance for Measurable Precipitation 100%

Rain

High: 40 °F

Sunday
Night

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

Low: 28 °F

Monday

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

High: 32 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 22 °F

Tuesday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 37 °F

Tuesday
Night

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

Low: 30 °F

Wednesday

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

High: 37 °F

Wednesday
Night

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

Low: 19 °F

Detailed Forecast

  • Tonight Snow before 10pm, then rain likely. Low around 35. Southwest wind 9 to 17 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 2 inches possible.
  • Sunday Rain. The rain could be heavy at times. High near 40. Windy, with a west northwest wind 24 to 34 mph, with gusts as high as 46 mph. Chance of precipitation is 100%.
  • Sunday Night Snow likely, mainly before 4am. Cloudy, with a low around 28. Blustery, with a west northwest wind 20 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
  • Monday A 30 percent chance of snow, mainly before 10am. Partly sunny, with a high near 32. Breezy, with a west northwest wind 20 to 25 mph decreasing to 13 to 18 mph in the morning. Winds could gust as high as 34 mph. New snow accumulation of less than one inch possible.
  • Monday Night Partly cloudy, with a low around 22. West wind 3 to 5 mph.
  • Tuesday A slight chance of snow. Mostly sunny, with a high near 37. Chance of precipitation is 20%.
  • Tuesday Night A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%. Little or no snow accumulation expected.
  • Wednesday Snow likely. Mostly cloudy, with a high near 37. Chance of precipitation is 70%.
  • Wednesday Night Snow likely. Cloudy, with a low around 19. Chance of precipitation is 70%.
  • Christmas Day A 30 percent chance of snow showers. Partly sunny, with a high near 21.
  • Thursday Night A 20 percent chance of snow showers. Mostly cloudy, with a low around 12.
  • Friday A 20 percent chance of snow. Mostly cloudy, with a high near 24.
  • Friday Night A 20 percent chance of snow. Mostly cloudy, with a low around 16.
  • Saturday A 20 percent chance of snow showers. Mostly cloudy, with a high near 26.