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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

Tonight

Mostly Clear

Mostly
Clear

Low: 50 °F

Saturday

Sunny

Sunny

High: 71 °F

Saturday
Night

Clear

Clear

Low: 54 °F

Sunday

Sunny

Sunny

High: 74 °F

Sunday
Night

Mostly Clear

Mostly
Clear

Low: 52 °F

Monday

Mostly Sunny

Mostly
Sunny

High: 62 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 52 °F

Tuesday

Slight Chance Rain

Slight Chc
Rain

High: 55 °F

Tuesday
Night

Rain Likely

Rain
Likely

Low: 45 °F

Detailed Forecast

  • Tonight Mostly clear, with a low around 50. North northwest wind 6 to 11 mph becoming light in the evening.
  • Saturday Sunny, with a high near 71. East wind 8 to 16 mph, with gusts as high as 21 mph.
  • Saturday Night Clear, with a low around 54. East southeast wind 10 to 13 mph.
  • Sunday Sunny, with a high near 74. Southeast wind 7 to 13 mph becoming west southwest in the morning.
  • Sunday Night Mostly clear, with a low around 52. West southwest wind around 7 mph.
  • Monday Mostly sunny, with a high near 62.
  • Monday Night Partly cloudy, with a low around 52.
  • Tuesday A slight chance of rain. Partly sunny, with a high near 55.
  • Tuesday Night Rain likely. Cloudy, with a low around 45.
  • Wednesday Rain likely. Cloudy, with a high near 49.
  • Wednesday Night Rain likely. Cloudy, with a low around 42. Breezy.
  • Thursday A chance of rain. Cloudy, with a high near 46. Breezy.
  • Thursday Night A chance of showers. Cloudy, with a low around 39.
  • Friday A chance of rain. Mostly cloudy, with a high near 45.