National Weather Service United States Department of Commerce

Heavy lake-effect snow continues across lower Great Lakes

Another round of heavy lake-effect snow is forecast for the Great Lakes through mid-day Friday. An additional 30 inches or more could fall in some locations, on top of the impressive amounts that have fallen already. This will result in very difficult or nearly impossible travel at times in the heaviest snow bands. The snow should taper off during the morning on Friday.
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Current Conditions

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2 Miles ENE Mount St Helens WA

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Tonight

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 32 °F

Friday

Rain/Snow Chance for Measurable Precipitation 100%

Rain/Snow

High: 40 °F

Friday
Night

Rain/Snow Chance for Measurable Precipitation 100%

Rain/Snow

Low: 30 °F

Saturday

Snow Chance for Measurable Precipitation 100%

Snow

High: 37 °F

Saturday
Night

Snow Chance for Measurable Precipitation 90%

Snow

Low: 29 °F

Sunday

Snow Chance for Measurable Precipitation 90%

Snow

High: 38 °F

Sunday
Night

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

Low: 32 °F

Monday

Snow Likely

Snow
Likely

High: 40 °F

Monday
Night

Snow Likely

Snow
Likely

Low: 34 °F

Detailed Forecast

  • Tonight A 30 percent chance of snow showers, mainly before 10pm. Mostly cloudy, with a low around 32. South southeast wind 5 to 7 mph. Total nighttime snow accumulation of less than a half inch possible.
  • Friday Snow before 10am, then rain and snow between 10am and 4pm, then rain after 4pm. High near 40. South wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
  • Friday Night Rain before 10pm, then snow showers. Low around 30. Windy, with a southwest wind 22 to 32 mph becoming west northwest 10 to 20 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
  • Saturday Snow showers. High near 37. West southwest wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
  • Saturday Night Snow. Low around 29. Breezy, with a west wind 16 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
  • Sunday Snow showers. High near 38. Breezy. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
  • Sunday Night A 40 percent chance of snow. Mostly cloudy, with a low around 32. New snow accumulation of less than one inch possible.
  • Monday Snow likely. Mostly cloudy, with a high near 40.
  • Monday Night Snow likely. Mostly cloudy, with a low around 34.
  • Tuesday Rain and snow likely. Cloudy, with a high near 45. Breezy.
  • Tuesday Night Rain and snow likely. Mostly cloudy, with a low around 36.
  • Wednesday A chance of snow. Mostly cloudy, with a high near 40. Breezy.
  • Wednesday Night A chance of rain. Mostly cloudy, with a low around 35.
  • Thanksgiving Day A chance of rain. Mostly cloudy, with a high near 40.