National Weather Service United States Department of Commerce

The flash flooding threat shifts slightly east on Friday while both coasts and Hawaii continue high surf issues due to tropical systems

The potential for heavy rainfall and flash flooding will shift east on Friday across parts of the Upper Midwest into the eastern Great Lakes. Meanwhile, portions of both the East and West Coasts, as well as Hawaii, will continue to have high surf and rip current potential due to Hurricane Cristobal and Tropical Storm Marie respectively. Caution should be used on area beaches.
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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

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 58 °F

Tonight

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 42 °F

Saturday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 52 °F

Saturday
Night

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 42 °F

Sunday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 52 °F

Sunday
Night

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 41 °F

Labor
Day

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 56 °F

Monday
Night

Slight Chance Showers

Slight Chc
Showers

Low: 45 °F

Tuesday

Slight Chance Showers

Slight Chc
Showers

High: 59 °F

Detailed Forecast

  • Today A 20 percent chance of showers after 11am. Mostly cloudy, with a high near 58. North northwest wind 5 to 15 mph becoming west in the morning. Winds could gust as high as 25 mph.
  • Tonight A 20 percent chance of showers. Cloudy, with a low around 42. West wind 17 to 21 mph, with gusts as high as 33 mph.
  • Saturday A 30 percent chance of showers. Cloudy, with a high near 52. Breezy, with a west southwest wind 20 to 23 mph, with gusts as high as 37 mph.
  • Saturday Night A 30 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 42. Breezy, with a west northwest wind 18 to 23 mph decreasing to 11 to 16 mph in the evening. Winds could gust as high as 37 mph. New precipitation amounts of less than a tenth of an inch possible.
  • Sunday A 30 percent chance of showers, mainly before 11am. Mostly cloudy, with a high near 52. West northwest wind 8 to 14 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.
  • Sunday Night A 30 percent chance of showers. Mostly cloudy, with a low around 41.
  • Labor Day A 20 percent chance of showers. Partly sunny, with a high near 56.
  • Monday Night A slight chance of showers. Mostly cloudy, with a low around 45.
  • Tuesday A slight chance of showers. Partly sunny, with a high near 59.
  • Tuesday Night A slight chance of showers. Mostly cloudy, with a low around 45.
  • Wednesday A slight chance of showers. Partly sunny, with a high near 55.
  • Wednesday Night A slight chance of showers. Mostly cloudy, with a low around 43.
  • Thursday Partly sunny, with a high near 55.