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

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

29 Miles WSW 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

  • Tonight

    Low: 35 °F

    Snow then
    Rain/Snow

  • Wednesday

    Wednesday: Rain, mainly before 2pm.  High near 45. South southeast wind 7 to 10 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 45 °F

    Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 40. South southwest wind 8 to 11 mph, with gusts as high as 21 mph.  New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Chance Rain

  • Thursday

    Thursday: Rain before 5pm, then rain, possibly mixed with snow.  High near 44. West southwest wind 7 to 9 mph, with gusts as high as 28 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 44 °F

    Rain then
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain and snow.  Low around 41. West southwest wind 6 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 41 °F

    Rain/Snow

  • Friday

    Friday: Rain and snow likely before 11am, then a chance of rain.  Mostly cloudy, with a high near 45. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 45 °F

    Rain/Snow
    Likely then
    Chance Rain

  • Friday Night

    Friday Night: A chance of rain before 2am, then a chance of rain and snow.  Snow level 7000 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 33. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain and snow before 11am.  Snow level 5100 feet rising to 6300 feet in the afternoon. Partly sunny, with a high near 43.

    High: 43 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

Detailed Forecast

Tonight
Snow before 2am, then rain and snow. Low around 35. East southeast wind 5 to 7 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Rain, mainly before 2pm. High near 45. South southeast wind 7 to 10 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40. South southwest wind 8 to 11 mph, with gusts as high as 21 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain before 5pm, then rain, possibly mixed with snow. High near 44. West southwest wind 7 to 9 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Rain and snow. Low around 41. West southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday
Rain and snow likely before 11am, then a chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday Night
A chance of rain before 2am, then a chance of rain and snow. Snow level 7000 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 33. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
A chance of rain and snow before 11am. Snow level 5100 feet rising to 6300 feet in the afternoon. Partly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
A chance of rain and snow before 2pm, then a chance of rain. Snow level 5100 feet rising to 6200 feet in the afternoon. Partly sunny, with a high near 44.
Sunday Night
A chance of rain and snow. Snow level 6300 feet lowering to 5400 feet after midnight . Mostly cloudy, with a low around 33.
Monday
A chance of rain and snow. Snow level 5200 feet rising to 6500 feet in the afternoon. Mostly cloudy, with a high near 43.
Monday Night
Rain likely. Mostly cloudy, with a low around 36.
Tuesday
Rain and snow. Snow level 5600 feet. Mostly cloudy, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
29 Miles WSW Darby MT
 45.92°N 114.76°W (Elev. 4902 ft)
2:21 pm MST Dec 9, 2025
9pm MST Dec 9, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

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