National Weather Service United States Department of Commerce

Wet weather continues across Pacific Northwest and New England

Two developing storm systems will bring heavy rain to opposite coasts of the U.S. on Wednesday, one affecting the Pacific Northwest and northern California and the other New England. There is a risk of flash flooding across both areas, with 2-4 inches of rainfall, with isolated higher amounts, possible by Thursday morning.
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Hazardous Weather Conditions

Current Conditions

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3 Miles NW Mount St Helens WA

7 Day Forecast

For More Weather Information:

Portland, OR Local Forecast Office

Late
Afternoon

Heavy Rain Chance for Measurable Precipitation 100%

Heavy
Rain

High: 56 °F

Tonight

Heavy Rain Chance for Measurable Precipitation 100%

Heavy
Rain

Low: 46 °F

Thursday

Showers Chance for Measurable Precipitation 100%

Showers

High: 51 °F

Thursday
Night

Showers Chance for Measurable Precipitation 90%

Showers

Low: 44 °F

Friday

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

High: 56 °F

Friday
Night

Rain Chance for Measurable Precipitation 80%

Rain

Low: 46 °F

Saturday

Rain Chance for Measurable Precipitation 80%

Rain

High: 56 °F

Saturday
Night

Showers

Showers

Low: 40 °F

Sunday

Showers Likely

Showers
Likely

High: 44 °F

Detailed Forecast

  • Late Afternoon Rain. The rain could be heavy at times. High near 56. South wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
  • Tonight Rain. The rain could be heavy at times. Low around 46. South southwest wind 13 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
  • Thursday Showers. High near 51. South southwest wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
  • Thursday Night Showers. Low around 44. South wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Friday Rain likely, mainly after 11am. Mostly cloudy, with a high near 56. Southeast wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
  • Friday Night Rain. Low around 46. Chance of precipitation is 80%.
  • Saturday Rain. High near 56. Chance of precipitation is 80%.
  • Saturday Night Showers. Cloudy, with a low around 40. Breezy.
  • Sunday Showers likely. Mostly cloudy, with a high near 44.
  • Sunday Night Showers likely. Mostly cloudy, with a low around 41.
  • Monday Showers likely. Cloudy, with a high near 45.
  • Monday Night Rain likely. Cloudy, with a low around 45.
  • Tuesday Rain. Cloudy, with a high near 50.
  • Tuesday Night Showers likely. Cloudy, with a low around 43.
  • Wednesday Rain likely. Cloudy, with a high near 51.