National Weather Service United States Department of Commerce

Unseasonably cold temperatures spreading into central U.S.

A strong cold front will usher a much colder air mass into the central and eastern U.S. for the end of the work week. Temperatures will be 10 to 20 degrees below average in some areas. Rain and snow will be possible across the Great Lakes on Friday as the system crosses the area. Heavy snow is possible in the central Appalachians Friday night.
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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

Rain Chance for Measurable Precipitation 100%

Rain

Low: 44 °F

Friday

Snow Chance for Measurable Precipitation 100%

Snow

High: 45 °F

Friday
Night

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: 34 °F

Saturday

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

High: 46 °F

Saturday
Night

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

Low: 37 °F

Sunday

Snow Chance for Measurable Precipitation 80%

Snow

High: 45 °F

Sunday
Night

Rain/Snow Chance for Measurable Precipitation 80%

Rain/Snow

Low: 43 °F

Monday

Rain/Snow

Rain/Snow

High: 49 °F

Monday
Night

Rain

Rain

Low: 45 °F

Detailed Forecast

  • Overnight Rain. Low around 44. South southeast wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Friday Snow showers. High near 45. West southwest wind around 7 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
  • Friday Night Snow showers likely, mainly before 8pm. Mostly cloudy, with a low around 34. West wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 60%. Little or no snow accumulation expected.
  • Saturday A 40 percent chance of snow showers. Mostly cloudy, with a high near 46. West northwest wind 6 to 9 mph. Little or no snow accumulation expected.
  • Saturday Night A 40 percent chance of snow showers. Cloudy, with a low around 37. West northwest wind 9 to 11 mph, with gusts as high as 18 mph. Little or no snow accumulation expected.
  • Sunday Snow, mainly after 11am. High near 45. Chance of precipitation is 80%. Little or no snow accumulation expected.
  • Sunday Night Rain and snow. Low around 43. Chance of precipitation is 80%. Little or no snow accumulation expected.
  • Monday Rain and snow. Cloudy, with a high near 49.
  • Monday Night Rain. Cloudy, with a low around 45.
  • Tuesday Rain. Cloudy, with a high near 55. Breezy.
  • Tuesday Night Rain likely. Cloudy, with a low around 45.
  • Wednesday Rain likely. Cloudy, with a high near 48.
  • Wednesday Night Rain likely. Mostly cloudy, with a low around 46.
  • Thursday Rain likely. Mostly cloudy, with a high near 46. Breezy.