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 >

Hazardous Weather Conditions

Current conditions at

WEST FORK (WSFM8)

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

NA

36°F

2°C

Humidity 92%
Wind Speed WNW 1 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 09 Dec 09:14 PM MST
Extended Forecast for

8 Miles W Darby MT

  • Tonight

    Tonight: Snow. The snow could be heavy at times.  Temperature rising to around 31 by 5am. Windy, with a southwest wind 15 to 20 mph increasing to 28 to 33 mph after midnight. Winds could gust as high as 43 mph.  Chance of precipitation is 100%. Total nighttime snow accumulation of 5 to 9 inches possible.

    Low: 24 °F

    Heavy Snow
    and Windy

  • Wednesday

    Wednesday: Snow before 2pm, then a chance of rain and snow. The snow could be heavy at times.  High near 33. Windy, with a west southwest wind 31 to 38 mph, with gusts as high as 60 mph.  Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    High: 33 °F

    Windy. Heavy
    Snow then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 11pm, then a chance of snow.  Mostly cloudy, with a low around 29. Windy, with a west southwest wind 36 to 41 mph, with gusts as high as 60 mph.  Chance of precipitation is 50%. New snow accumulation of 1 to 2 inches possible.

    Low: 29 °F

    Windy. Chance
    Rain/Snow
    then Chance
    Snow

  • Thursday

    Thursday: Snow likely before 11am, then snow, possibly mixed with rain between 11am and 2pm, then snow after 2pm.  High near 34. Windy, with a west southwest wind 35 to 40 mph decreasing to 29 to 34 mph in the afternoon. Winds could gust as high as 60 mph.  Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 34 °F

    Rain/Snow and
    Windy

  • Thursday Night

    Thursday Night: Snow.  Low around 30. Windy, with a west southwest wind 28 to 30 mph, with gusts as high as 50 mph.  Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 30 °F

    Snow and
    Windy

  • Friday

    Friday: Snow likely, mainly before 11am.  Mostly cloudy, with a high near 32. Breezy.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 32 °F

    Breezy. Snow
    Likely then
    Chance Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly after 11pm.  Mostly cloudy, with a low around 26. Windy.  New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance Snow
    and Windy

  • Saturday

    Saturday: A chance of snow before 11am.  Partly sunny, with a high near 28. Breezy.

    High: 28 °F

    Chance Snow
    and Breezy
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26. Breezy.

    Low: 26 °F

    Partly Cloudy
    and Breezy

Detailed Forecast

Tonight
Snow. The snow could be heavy at times. Temperature rising to around 31 by 5am. Windy, with a southwest wind 15 to 20 mph increasing to 28 to 33 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 5 to 9 inches possible.
Wednesday
Snow before 2pm, then a chance of rain and snow. The snow could be heavy at times. High near 33. Windy, with a west southwest wind 31 to 38 mph, with gusts as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Wednesday Night
A chance of rain and snow before 11pm, then a chance of snow. Mostly cloudy, with a low around 29. Windy, with a west southwest wind 36 to 41 mph, with gusts as high as 60 mph. Chance of precipitation is 50%. New snow accumulation of 1 to 2 inches possible.
Thursday
Snow likely before 11am, then snow, possibly mixed with rain between 11am and 2pm, then snow after 2pm. High near 34. Windy, with a west southwest wind 35 to 40 mph decreasing to 29 to 34 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
Snow. Low around 30. Windy, with a west southwest wind 28 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 32. Breezy. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Friday Night
A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 26. Windy. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow before 11am. Partly sunny, with a high near 28. Breezy.
Saturday Night
Partly cloudy, with a low around 26. Breezy.
Sunday
A chance of snow. Partly sunny, with a high near 29. Breezy.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 26.
Monday
A chance of snow. Partly sunny, with a high near 30.
Monday Night
Snow likely. Mostly cloudy, with a low around 27. Windy.
Tuesday
Snow. Mostly cloudy, with a high near 28. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles W Darby MT
 46°N 114.34°W (Elev. 8786 ft)
2:21 pm MST Dec 9, 2025
10pm MST Dec 9, 2025-6pm MST Dec 16, 2025
 
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