National Weather Service United States Department of Commerce

Heavy Snow For the Southern Rockies with Heavy Rain for Portions of the Southwest

A moist flow off the Pacific will bring heavy rain to southern California and Arizona with heavy snow for the southern Rocky Mountains Monday. More freezing rain is possible from the southern Plains to the central Mississippi Valley. Heavy snow is also expected for portions of New England and upstate New York Monday.
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Current Conditions

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Mount St Helens WA

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Overnight

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: 24 °F

Monday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 32 °FFalling Temperatures

Monday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 15 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 31 °F

Tuesday
Night

Mostly Clear

Mostly
Clear

Low: 26 °F

Wednesday

Sunny

Sunny

High: 41 °F

Wednesday
Night

Mostly Clear

Mostly
Clear

Low: 33 °F

Thursday

Mostly Sunny

Mostly
Sunny

High: 40 °F

Thursday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 29 °F

Detailed Forecast

  • Overnight A 50 percent chance of snow, mainly before 4am. Mostly cloudy, with a low around 24. West wind 3 to 5 mph. Little or no snow accumulation expected.
  • Monday A 20 percent chance of snow showers before 10am. Partly sunny, with a temperature rising to near 32 by noon, then falling to around 21 during the remainder of the day. North northwest wind 7 to 9 mph.
  • Monday Night Mostly cloudy, with a low around 15. Wind chill values as low as -1. North northeast wind 8 to 16 mph, with gusts as high as 25 mph.
  • Tuesday Mostly sunny, with a high near 31. East wind 3 to 7 mph.
  • Tuesday Night Mostly clear, with a low around 26. North northwest wind around 6 mph becoming east in the evening.
  • Wednesday Sunny, with a high near 41.
  • Wednesday Night Mostly clear, with a low around 33.
  • Thursday Mostly sunny, with a high near 40.
  • Thursday Night Mostly cloudy, with a low around 29.
  • Friday Partly sunny, with a high near 41.
  • Friday Night Partly cloudy, with a low around 25.
  • Saturday Mostly sunny, with a high near 42.
  • Saturday Night Partly cloudy, with a low around 27.
  • Sunday Mostly sunny, with a high near 42.