National Weather Service United States Department of Commerce

Cold Front Crossing the Central U.S.

A cold front over the Northern Rockies will move eastward to the Upper Mississippi Valley/Central Plains by Monday. Rain will develop along the boundary over the Upper Midwest and move into the Upper Great Lakes by Monday. Some of the thunderstorms could become severe in portions of Texas through Monday.
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Current Conditions

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9 Miles ENE Mount St Helens WA

7 Day Forecast

Portland, OR

NWS Weather Forecast Office

This
Afternoon

Partly Sunny

Partly
Sunny

High: 51 °F

Tonight

Mostly Cloudy

Mostly
Cloudy

Low: 37 °F

Monday

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

High: 51 °F

Monday
Night

Showers Chance for Measurable Precipitation 80%

Showers

Low: 33 °F

Tuesday

Rain/Snow Chance for Measurable Precipitation 80%

Rain/Snow

High: 37 °F

Tuesday
Night

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

Low: 32 °F

Wednesday

Rain/Snow Likely Chance for Measurable Precipitation 60%

Rain/Snow
Likely

High: 39 °F

Wednesday
Night

Rain Likely

Rain
Likely

Low: 35 °F

Thursday

Rain Likely

Rain
Likely

High: 46 °F

Detailed Forecast

  • This Afternoon Partly sunny, with a high near 51. South southwest wind around 7 mph.
  • Tonight Mostly cloudy, with a low around 37. South southwest wind around 6 mph becoming light and variable.
  • Monday A 40 percent chance of showers, mainly after 11am. Mostly cloudy, with a high near 51. Southeast wind 5 to 14 mph. New precipitation amounts of less than a tenth of an inch possible.
  • Monday Night Showers. Low around 33. West southwest wind 3 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Tuesday Rain showers likely before 11am, then rain and snow showers. High near 37. West wind 5 to 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
  • Tuesday Night A chance of rain and snow showers. Mostly cloudy, with a low around 32. Chance of precipitation is 50%. Little or no snow accumulation expected.
  • Wednesday Rain and snow likely. Mostly cloudy, with a high near 39. Chance of precipitation is 60%. Little or no snow accumulation expected.
  • Wednesday Night Rain likely. Cloudy, with a low around 35.
  • Thursday Rain likely. Cloudy, with a high near 46.
  • Thursday Night Showers likely. Mostly cloudy, with a low around 36.
  • Friday A chance of showers. Mostly cloudy, with a high near 46.
  • Friday Night Showers likely. Cloudy, with a low around 34.
  • Saturday Showers likely. Mostly cloudy, with a high near 44.

 

Additional Forecasts and Information

Zone Area Forecast for South Washington Cascades, WA