National Weather Service United States Department of Commerce

Coastal low to bring gusty winds and periods of heavy rain to New England while moderate to heavy rain is expected to linger in the Pacific Northwest and northern California

A coastal low will slowly intensify before moving out of the New England area. Increasingly heavy rainfall will impact the region through Friday. In addition, winds will increase and seas will become rough as the storm gradually intensifies just off the coast. Out west, a cold front approaching the Pacific Northwest will bring moderate to heavy rain to Washington, Oregon and northern California.
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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

Today

Heavy Rain Chance for Measurable Precipitation 100%

Heavy
Rain

High: 51 °F

Tonight

Rain Chance for Measurable Precipitation 100%

Rain

Low: 42 °F

Thursday

Rain/Snow Chance for Measurable Precipitation 100%

Rain/Snow

High: 46 °F

Thursday
Night

Snow Chance for Measurable Precipitation 80%

Snow

Low: 39 °F

Friday

Rain/Snow Likely Chance for Measurable Precipitation 70%

Rain/Snow
Likely

High: 50 °F

Friday
Night

Rain Chance for Measurable Precipitation 80%

Rain

Low: 40 °F

Saturday

Snow Chance for Measurable Precipitation 80%

Snow

High: 46 °F

Saturday
Night

Snow

Snow

Low: 36 °F

Sunday

Snow Likely

Snow
Likely

High: 41 °F

Detailed Forecast

  • Today Rain. The rain could be heavy at times. High near 51. Breezy, with a south wind 15 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
  • Tonight Rain. The rain could be heavy at times. Low around 42. South southwest wind 11 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
  • Thursday Rain and snow showers, becoming all snow after 11am. High near 46. South southwest wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
  • Thursday Night Snow showers. Low around 39. South wind 9 to 11 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
  • Friday A chance of snow before 11am, then rain and snow likely. Mostly cloudy, with a high near 50. Southeast wind 8 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
  • Friday Night Rain. Low around 40. Breezy. Chance of precipitation is 80%.
  • Saturday Snow. High near 46. Breezy. Chance of precipitation is 80%. Little or no snow accumulation expected.
  • Saturday Night Snow showers. Cloudy, with a low around 36. Breezy.
  • Sunday Snow showers likely. Mostly cloudy, with a high near 41.
  • Sunday Night A chance of snow showers. Mostly cloudy, with a low around 36.
  • Monday A chance of snow. Cloudy, with a high near 49.
  • Monday Night Rain likely. Cloudy, with a low around 42.
  • Tuesday Rain likely. Cloudy, with a high near 51.