National Weather Service United States Department of Commerce

Heavy rain possible for parts of the northern Rockies & Plains; Severe storms for the Upper Midwest

An unseasonably strong storm system in the northwest U.S. will bring showers and thunderstorms, some heavy, to parts of the northern Rockies and northern Plains through Saturday. Isolated flash floods will be possible in these areas. Some of the storms could be severe in parts of the Dakotas into Minnesota, with large hail and damaging winds.
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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

Partly Cloudy

Partly
Cloudy

Low: 46 °F

Saturday

Sunny

Sunny

High: 62 °F

Saturday
Night

Mostly Clear

Mostly
Clear

Low: 47 °F

Sunday

Sunny

Sunny

High: 66 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 47 °F

Monday

Sunny

Sunny

High: 69 °F

Monday
Night

Mostly Clear

Mostly
Clear

Low: 49 °F

Tuesday

Sunny

Sunny

High: 74 °F

Tuesday
Night

Mostly Clear

Mostly
Clear

Low: 51 °F

Detailed Forecast

  • Tonight Partly cloudy, with a low around 46. North northwest wind 5 to 10 mph becoming northeast after midnight.
  • Saturday Sunny, with a high near 62. Calm wind becoming northwest 5 to 9 mph in the afternoon.
  • Saturday Night Mostly clear, with a low around 47. North northwest wind 8 to 13 mph becoming light north northeast after midnight. Winds could gust as high as 20 mph.
  • Sunday Sunny, with a high near 66. Light and variable wind becoming west northwest around 5 mph in the afternoon.
  • Sunday Night Partly cloudy, with a low around 47. North northwest wind 5 to 8 mph becoming east in the evening.
  • Monday Sunny, with a high near 69.
  • Monday Night Mostly clear, with a low around 49.
  • Tuesday Sunny, with a high near 74.
  • Tuesday Night Mostly clear, with a low around 51.
  • Wednesday Sunny, with a high near 75.
  • Wednesday Night Partly cloudy, with a low around 52.
  • Thursday Partly sunny, with a high near 66.
  • Thursday Night Mostly cloudy, with a low around 50.
  • Friday Partly sunny, with a high near 65.