Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

WEST FORK (WSFM8)

Lat: 45.81556°NLon: 114.25833°WElev: 4420.0ft.

NA

34°F

1°C

Humidity 96%
Wind Speed S 1 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 10 Dec 01:14 AM MST
Extended Forecast for

31 Miles W Darby MT

Flood Watch until December 11, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until December 11, 05:00pm

    NOW until 5:00pm Thu

    Flood Watch

  • Overnight

    Low: 38 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain, mainly before 1pm.  High near 48. South wind 7 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 48 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm, then a chance of rain after midnight.  Mostly cloudy, with a low around 43. South southwest wind 9 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Chance Rain

  • Thursday

    Thursday: Rain.  High near 48. West southwest wind 6 to 8 mph, with gusts as high as 26 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Low around 43. West southwest wind 6 to 9 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain

  • Friday

    Friday: Rain likely, mainly before 11am.  Mostly cloudy, with a high near 48. Chance of precipitation is 70%.

    High: 48 °F

    Rain Likely
    then Chance
    Rain

  • Friday Night

    Friday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain before 11am.  Mostly sunny, with a high near 48.

    High: 48 °F

    Slight Chance
    Rain then
    Mostly Sunny

Detailed Forecast

Overnight
Rain and snow, becoming all rain after 2am. Snow level 4200 feet rising to 5200 feet. Low around 38. South southeast wind around 6 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday
Rain, mainly before 1pm. High near 48. South wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
A chance of rain before 11pm, then a chance of rain after midnight. Mostly cloudy, with a low around 43. South southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain. High near 48. West southwest wind 6 to 8 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 43. West southwest wind 6 to 9 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 48. Chance of precipitation is 70%.
Friday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 35.
Saturday
A slight chance of rain before 11am. Mostly sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
A slight chance of rain after 11am. Mostly sunny, with a high near 48.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 35.
Monday
A chance of rain. Partly sunny, with a high near 48.
Monday Night
Rain. Mostly cloudy, with a low around 40.
Tuesday
Rain. Mostly cloudy, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
31 Miles W Darby MT
 46°N 114.81°W (Elev. 3717 ft)
1:02 am MST Dec 10, 2025
1am MST Dec 10, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

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