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.
Read More...

Current Conditions

En Español

Share |

2 Miles NE Mount St Helens WA

7 Day Forecast

Portland, OR

NWS Weather Forecast Office

Tonight

Mostly Cloudy

Mostly
Cloudy

Low: 40 °F

Monday

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

High: 61 °F

Monday
Night

Rain/Snow Chance for Measurable Precipitation 80%

Rain/Snow

Low: 36 °F

Tuesday

Snow Chance for Measurable Precipitation 80%

Snow

High: 48 °F

Tuesday
Night

Snow Chance for Measurable Precipitation 90%

Snow

Low: 35 °F

Wednesday

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

High: 48 °F

Wednesday
Night

Snow Chance for Measurable Precipitation 90%

Snow

Low: 32 °F

Thursday

Snow

Snow

High: 49 °F

Thursday
Night

Snow

Snow

Low: 31 °F

Detailed Forecast

  • Tonight Mostly cloudy, with a low around 40. South southeast wind 5 to 10 mph.
  • Monday A 40 percent chance of showers. Mostly cloudy, with a high near 61. Southwest wind 7 to 11 mph. New precipitation amounts of less than a tenth of an inch possible.
  • Monday Night Rain showers before 11pm, then snow showers. Low around 36. West wind 7 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
  • Tuesday Snow showers. High near 48. West wind 7 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
  • Tuesday Night Snow showers. Low around 35. South southwest wind around 10 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
  • Wednesday Snow likely. Cloudy, with a high near 48. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
  • Wednesday Night Snow. Low around 32. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
  • Thursday Snow. Cloudy, with a high near 49.
  • Thursday Night Snow showers. Cloudy, with a low around 31.
  • Friday Snow showers likely. Cloudy, with a high near 49.
  • Friday Night Snow showers likely. Cloudy, with a low around 29.
  • Saturday Snow showers likely. Cloudy, with a high near 38.
  • Saturday Night Snow likely. Mostly cloudy, with a low around 29.
  • Sunday Snow likely. Cloudy, with a high near 46.

 

Additional Forecasts and Information

Zone Area Forecast for South Washington Cascades, WA