National Weather Service United States Department of Commerce

Arctic air to drop temperatures across the northern Plain and northern Rockies; will bring snow to the Intermountain West

An arctic front is forecast to plunge through the northern Plains and northern Rockies on Saturday bringing a drastic drop in temperatures across these areas with a burst of snow over much of the Intermountain Region. Arctic air will also filter into the Pacific Northwest bringing with it snow showers and subfreezing low temperatures.
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Current Conditions

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18 Miles NNW Cascade Locks OR

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Overnight

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: 37 °F

Saturday

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

High: 35 °FFalling Temperatures

Saturday
Night

Mostly Clear

Mostly
Clear

Low: 21 °F

Sunday

Sunny

Sunny

High: 30 °F

Sunday
Night

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

Low: 21 °F

Monday

Rain/Snow Likely Chance for Measurable Precipitation 60%

Rain/Snow
Likely

High: 35 °F

Monday
Night

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

Low: 27 °F

Tuesday

Slight Chance Showers

Slight Chc
Showers

High: 39 °F

Tuesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 27 °F

Detailed Forecast

  • Overnight Snow showers likely. Mostly cloudy, with a steady temperature around 37. West wind around 7 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
  • Saturday Snow showers likely, mainly before 10am. Partly sunny, with a temperature falling to around 30 by 5pm. West wind 7 to 9 mph becoming north northwest in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
  • Saturday Night Mostly clear, with a low around 21. Light and variable wind becoming east around 6 mph in the evening.
  • Sunday Sunny, with a high near 30. East wind around 13 mph.
  • Sunday Night A 30 percent chance of rain after 4am. Partly cloudy, with a low around 21. East wind 8 to 13 mph.
  • Monday A chance of rain before 10am, then snow likely. Mostly cloudy, with a high near 35. Chance of precipitation is 60%. Little or no snow accumulation expected.
  • Monday Night A 50 percent chance of rain. Mostly cloudy, with a low around 27.
  • Tuesday A slight chance of showers. Mostly cloudy, with a high near 39.
  • Tuesday Night Mostly cloudy, with a low around 27.
  • Wednesday A slight chance of showers. Cloudy, with a high near 39.
  • Wednesday Night A chance of rain. Cloudy, with a low around 29.
  • Thursday A chance of rain. Cloudy, with a high near 41.
  • Thursday Night Rain likely. Cloudy, with a low around 28.
  • Friday A chance of rain. Cloudy, with a high near 41.