National Weather Service United States Department of Commerce

Flash flooding possible for parts of Upper Midwest

A slow-moving weather system progressing from the northern Plains to the Great Lakes will bring excessive rainfall and a risk of flash flooding to portions of the Upper Midwest on Friday. The heaviest rainfall is expected from central Iowa northeastward across southeastern Minn. and into Wisc. Rainfall totals of 1-2 inches, with locally-higher amounts, are possible through Saturday morning.
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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

This
Afternoon

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 61 °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: 54 °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: 56 °F

Sunday
Night

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 42 °F

Labor
Day

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 59 °F

Monday
Night

Slight Chance Showers

Slight Chc
Showers

Low: 44 °F

Tuesday

Slight Chance Showers

Slight Chc
Showers

High: 62 °F

Detailed Forecast

  • This Afternoon A 20 percent chance of showers. Mostly cloudy, with a high near 61. West wind around 14 mph, with gusts as high as 21 mph.
  • Tonight A 20 percent chance of showers. Cloudy, with a low around 42. West wind 16 to 18 mph, with gusts as high as 31 mph.
  • Saturday A 30 percent chance of showers. Cloudy, with a high near 54. West southwest wind 17 to 21 mph, with gusts as high as 33 mph.
  • Saturday Night A 30 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 42. West northwest wind 16 to 21 mph decreasing to 10 to 15 mph in the evening. Winds could gust as high as 33 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 56. 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 42.
  • Labor Day A 20 percent chance of showers. Partly sunny, with a high near 59.
  • Monday Night A slight chance of showers. Mostly cloudy, with a low around 44.
  • Tuesday A slight chance of showers. Partly sunny, with a high near 62.
  • Tuesday Night A slight chance of showers. Mostly cloudy, with a low around 44.
  • Wednesday A slight chance of showers. Partly sunny, with a high near 59.
  • Wednesday Night A slight chance of showers. Mostly cloudy, with a low around 43.
  • Thursday Partly sunny, with a high near 60.