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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4 Miles SSE 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: 59 °F

Tonight

Heavy Rain Chance for Measurable Precipitation 100%

Heavy
Rain

Low: 50 °F

Thursday

Showers Chance for Measurable Precipitation 100%

Showers

High: 56 °F

Thursday
Night

Showers Chance for Measurable Precipitation 90%

Showers

Low: 47 °F

Friday

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

High: 59 °F

Friday
Night

Rain Chance for Measurable Precipitation 80%

Rain

Low: 48 °F

Saturday

Rain Chance for Measurable Precipitation 80%

Rain

High: 61 °F

Saturday
Night

Showers

Showers

Low: 44 °F

Sunday

Showers Likely

Showers
Likely

High: 51 °F

Detailed Forecast

  • Late Afternoon Rain. The rain could be heavy at times. High near 59. South wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
  • Tonight Rain. The rain could be heavy at times. Low around 50. South southwest wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
  • Thursday Showers. High near 56. South southwest wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
  • Thursday Night Showers. Low around 47. South southeast wind around 8 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 59. East southeast wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
  • Friday Night Rain. Low around 48. Chance of precipitation is 80%.
  • Saturday Rain. High near 61. Chance of precipitation is 80%.
  • Saturday Night Showers. Cloudy, with a low around 44.
  • Sunday Showers likely. Mostly cloudy, with a high near 51.
  • Sunday Night A chance of showers. Mostly cloudy, with a low around 43.
  • Monday A chance of showers. Cloudy, with a high near 52.
  • Monday Night Rain likely. Cloudy, with a low around 43.
  • Tuesday Rain. Cloudy, with a high near 55.
  • Tuesday Night Showers likely. Cloudy, with a low around 46.
  • Wednesday Rain likely. Cloudy, with a high near 57.