National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Current conditions at

DRY CRK (DCCW1)

Lat: 45.94361°NLon: 121.9875°WElev: 2697.0ft.

NA

49°F

9°C

Humidity 94%
Wind Speed SW 7 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 08 Dec 05:25 PM PST
Extended Forecast for

13 Miles E Mount St Helens WA

Flood Watch December 8, 06:15pm until December 12, 04:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 8, 06:15pm until December 12, 04:00am

    NOW until 4:00am Fri

    Flood Watch

  • Tonight

    Low: 35 °F

    Heavy Rain
    and Windy

  • Tuesday

    Tuesday: Rain, possibly mixed with snow, becoming all rain after noon. Snow level 4000 feet rising to 8600 feet in the afternoon. High near 44. North northeast wind around 6 mph becoming south southeast in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 44 °F

    Rain/Snow
    then Rain

  • Tuesday Night

    Tuesday Night: Rain. The rain could be heavy at times. Temperature rising to around 45 by 3am. Breezy, with a southwest wind 10 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 42 °F⇑

    Heavy Rain
    and Breezy

  • Wednesday

    Wednesday: Rain. High near 46. Breezy, with a west southwest wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 46 °F

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain. Low around 42. West southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 42 °F

    Rain

  • Thursday

    Thursday: Rain. High near 44. Chance of precipitation is 90%.

    High: 44 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely
    then Chance
    Rain

  • Friday

    Friday: A chance of rain, mainly before 4pm. Mostly cloudy, with a high near 46.

    High: 46 °F

    Chance Rain

Detailed Forecast

Tonight
Rain. The rain could be heavy at times. Low around 35. Windy, with a southwest wind 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
Tuesday
Rain, possibly mixed with snow, becoming all rain after noon. Snow level 4000 feet rising to 8600 feet in the afternoon. High near 44. North northeast wind around 6 mph becoming south southeast in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tuesday Night
Rain. The rain could be heavy at times. Temperature rising to around 45 by 3am. Breezy, with a southwest wind 10 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
Rain. High near 46. Breezy, with a west southwest wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday Night
Rain. Low around 42. West southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Thursday
Rain. High near 44. Chance of precipitation is 90%.
Thursday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Friday
A chance of rain, mainly before 4pm. Mostly cloudy, with a high near 46.
Friday Night
A slight chance of rain before 10pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 38.
Saturday
A chance of rain, mainly after 10am. Partly sunny, with a high near 45.
Saturday Night
Rain likely. Mostly cloudy, with a low around 37.
Sunday
Rain. Snow level 5100 feet. Mostly cloudy, with a high near 39.
Sunday Night
Rain likely, possibly mixed with snow. Snow level 5000 feet. Mostly cloudy, with a low around 37.
Monday
Rain, possibly mixed with snow. Snow level 5700 feet. Mostly cloudy, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles E Mount St Helens WA
 46.17°N 121.93°W (Elev. 3537 ft)
Last Update:
5:41 pm PST Dec 8, 2025
Forecast Valid:
6pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation