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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16 Miles NNW Cascade Locks OR

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Tonight

Showers Likely Chance for Measurable Precipitation 60%

Showers
Likely

Low: 35 °F

Friday

Heavy Rain Chance for Measurable Precipitation 100%

Heavy
Rain

High: 42 °F

Friday
Night

Heavy Rain Chance for Measurable Precipitation 100%

Heavy
Rain

Low: 37 °F

Saturday

Showers Chance for Measurable Precipitation 90%

Showers

High: 43 °F

Saturday
Night

Rain Chance for Measurable Precipitation 80%

Rain

Low: 37 °F

Sunday

Showers Chance for Measurable Precipitation 90%

Showers

High: 42 °F

Sunday
Night

Chance Rain Chance for Measurable Precipitation 40%

Chance
Rain

Low: 38 °F

Monday

Rain Likely

Rain
Likely

High: 44 °F

Monday
Night

Rain Likely

Rain
Likely

Low: 36 °F

Detailed Forecast

  • Tonight Showers likely, mainly after 4am. Mostly cloudy, with a low around 35. East wind 3 to 5 mph. Chance of precipitation is 60%.
  • Friday Rain. The rain could be heavy at times. High near 42. Light southeast wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
  • Friday Night Showers. The rain could be heavy at times. Low around 37. Southwest wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
  • Saturday Showers. High near 43. Southwest wind 6 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
  • Saturday Night Rain. Low around 37. Southwest wind 5 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
  • Sunday Showers. High near 42. Chance of precipitation is 90%.
  • Sunday Night A 40 percent chance of rain. Mostly cloudy, with a low around 38.
  • Monday Rain likely. Mostly cloudy, with a high near 44.
  • Monday Night Rain likely. Mostly cloudy, with a low around 36.
  • Tuesday Rain likely. Mostly cloudy, with a high near 45.
  • Tuesday Night A chance of rain. Mostly cloudy, with a low around 37.
  • Wednesday A chance of rain. Mostly cloudy, with a high near 44.
  • Wednesday Night A chance of rain. Mostly cloudy, with a low around 36.
  • Thanksgiving Day A chance of rain. Mostly cloudy, with a high near 43.