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

Georgetown Lake (MTGTL)

Lat: 46.191°NLon: 113.3°WElev: 6338.0ft.

NA

28°F

-2°C

Humidity 85%
Wind Speed ENE 0 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 09 Dec 11:30 PM MST
Extended Forecast for

18 Miles SSW Georgetown MT

  • Tonight

    Tonight: Snow. The snow could be heavy at times.  Temperature rising to around 30 by 5am. West southwest wind 10 to 18 mph, with gusts as high as 38 mph.  Chance of precipitation is 100%. Total nighttime snow accumulation of 5 to 9 inches possible.

    Low: 23 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow before 11am, then snow likely, possibly mixed with rain. The snow could be heavy at times.  Snow level rising to 9100 feet in the afternoon. High near 36. Breezy, with a west wind 21 to 24 mph, with gusts as high as 50 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 36 °F

    Breezy.
    Rain/Snow
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before midnight, then a chance of snow between midnight and 1am, then a chance of rain and snow after 1am.  Snow level 8700 feet. Mostly cloudy, with a low around 30. Breezy, with a west southwest wind 21 to 23 mph, with gusts as high as 55 mph.  Chance of precipitation is 40%. New snow accumulation of less than one inch possible.

    Low: 30 °F

    Chance
    Rain/Snow and
    Breezy

  • Thursday

    Thursday: Rain and snow likely, becoming all snow after 2pm.  Snow level 9100 feet lowering to 8200 feet in the afternoon . Mostly cloudy, with a high near 35. Breezy, with a west southwest wind 21 to 23 mph, with gusts as high as 50 mph.  Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 35 °F

    Rain/Snow
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Snow likely.  Cloudy, with a low around 31. Breezy, with a west wind 16 to 24 mph, with gusts as high as 49 mph.  Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: 31 °F

    Snow Likely
    and Breezy

  • Friday

    Friday: Snow likely, mainly before 11am.  Cloudy, with a high near 32. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 32 °F

    Snow Likely
    then Chance
    Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly after 11pm.  Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Saturday

    Saturday: A chance of snow before 11am.  Partly sunny, with a high near 30.

    High: 30 °F

    Chance Snow
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow. The snow could be heavy at times. Temperature rising to around 30 by 5am. West southwest wind 10 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 5 to 9 inches possible.
Wednesday
Snow before 11am, then snow likely, possibly mixed with rain. The snow could be heavy at times. Snow level rising to 9100 feet in the afternoon. High near 36. Breezy, with a west wind 21 to 24 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
A chance of rain and snow before midnight, then a chance of snow between midnight and 1am, then a chance of rain and snow after 1am. Snow level 8700 feet. Mostly cloudy, with a low around 30. Breezy, with a west southwest wind 21 to 23 mph, with gusts as high as 55 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.
Thursday
Rain and snow likely, becoming all snow after 2pm. Snow level 9100 feet lowering to 8200 feet in the afternoon . Mostly cloudy, with a high near 35. Breezy, with a west southwest wind 21 to 23 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Thursday Night
Snow likely. Cloudy, with a low around 31. Breezy, with a west wind 16 to 24 mph, with gusts as high as 49 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow likely, mainly before 11am. Cloudy, with a high near 32. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow before 11am. Partly sunny, with a high near 30.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
A slight chance of snow. Partly sunny, with a high near 33.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 24.
Monday
A slight chance of snow. Partly sunny, with a high near 32.
Monday Night
A chance of snow. Mostly cloudy, with a low around 25.
Tuesday
Snow likely. Mostly cloudy, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles SSW Georgetown MT
 45.97°N 113.41°W (Elev. 8153 ft)
2:21 pm MST Dec 9, 2025
11pm MST Dec 9, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

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