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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

Showers Chance for Measurable Precipitation 90%

Showers

High: 63 °F

Tonight

Rain Chance for Measurable Precipitation 100%

Rain

Low: 47 °F

Wednesday

Showers Chance for Measurable Precipitation 100%

Showers

High: 61 °F

Wednesday
Night

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

Low: 42 °F

Thursday

Showers Likely Chance for Measurable Precipitation 60%

Showers
Likely

High: 52 °F

Thursday
Night

Showers Likely Chance for Measurable Precipitation 60%

Showers
Likely

Low: 38 °F

Friday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 48 °F

Friday
Night

Chance Showers

Chance
Showers

Low: 42 °F

Saturday

Chance Showers

Chance
Showers

High: 49 °F

Detailed Forecast

  • Today Showers. High near 63. South wind 15 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Tonight Rain. Low around 47. South wind 15 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
  • Wednesday Showers. High near 61. South wind 15 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
  • Wednesday Night A 40 percent chance of showers. Cloudy, with a low around 42. South southeast wind 9 to 14 mph, with gusts as high as 18 mph.
  • Thursday Showers likely. Cloudy, with a high near 52. Southeast wind around 7 mph becoming south southwest in the morning. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Thursday Night Showers likely, mainly before 11pm. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
  • Friday A 30 percent chance of showers, mainly before 11am. Mostly cloudy, with a high near 48.
  • Friday Night A chance of showers. Mostly cloudy, with a low around 42.
  • Saturday A chance of showers. Mostly cloudy, with a high near 49.
  • Saturday Night A slight chance of showers. Mostly cloudy, with a low around 43.
  • Sunday A slight chance of showers. Partly sunny, with a high near 51.
  • Sunday Night A chance of showers. Mostly cloudy, with a low around 42.
  • Monday A chance of showers. Mostly cloudy, with a high near 50.