Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Georgetown Lake (MTGTL)

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

NA

31°F

-1°C

Humidity 70%
Wind Speed SW 13 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Wind Chill21°F (-6°C)
Last update 08 Dec 03:45 AM MST
Extended Forecast for

21 Miles SW Georgetown MT

  • Overnight

    Overnight: A 10 percent chance of snow after 5am.  Cloudy, with a low around 22. West wind around 21 mph, with gusts as high as 37 mph.

    Low: 22 °F

    Slight Chance
    Snow

  • Monday

    Monday: Snow likely, mainly after 4pm. The snow could be heavy at times.  Cloudy, with a high near 30. Southwest wind 16 to 20 mph, with gusts as high as 40 mph.  Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    High: 30 °F

    Slight Chance
    Snow then
    Heavy Snow

  • Monday Night

    Monday Night: Snow. The snow could be heavy at times.  Low around 26. Breezy, with a west southwest wind 21 to 23 mph, with gusts as high as 47 mph.  Chance of precipitation is 90%. New snow accumulation of 6 to 10 inches possible.

    Low: 26 °F

    Heavy Snow
    and Breezy

  • Tuesday

    Tuesday: Snow. The snow could be heavy at times.  High near 30. Breezy, with a west wind 17 to 24 mph, with gusts as high as 49 mph.  Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    High: 30 °F

    Heavy Snow
    and Breezy
    then Snow
    Likely

  • Tuesday Night

    Tuesday Night: Snow. The snow could be heavy at times.  Low around 22. Southwest wind 8 to 14 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    Low: 22 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow. The snow could be heavy at times.  High near 32. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 32 °F

    Heavy Snow

  • Wednesday Night

    Wednesday Night: Snow.  Low around 30. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    Low: 30 °F

    Snow

  • Thursday

    Thursday: Snow likely.  Mostly cloudy, with a high near 32.

    High: 32 °F

    Snow Likely

  • Thursday Night

    Thursday Night: Snow likely, mainly before 11pm.  Cloudy, with a low around 30.

    Low: 30 °F

    Snow Likely

Detailed Forecast

Overnight
A 10 percent chance of snow after 5am. Cloudy, with a low around 22. West wind around 21 mph, with gusts as high as 37 mph.
Monday
Snow likely, mainly after 4pm. The snow could be heavy at times. Cloudy, with a high near 30. Southwest wind 16 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Monday Night
Snow. The snow could be heavy at times. Low around 26. Breezy, with a west southwest wind 21 to 23 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. New snow accumulation of 6 to 10 inches possible.
Tuesday
Snow. The snow could be heavy at times. High near 30. Breezy, with a west wind 17 to 24 mph, with gusts as high as 49 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Tuesday Night
Snow. The snow could be heavy at times. Low around 22. Southwest wind 8 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Wednesday
Snow. The snow could be heavy at times. High near 32. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Wednesday Night
Snow. Low around 30. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Thursday
Snow likely. Mostly cloudy, with a high near 32.
Thursday Night
Snow likely, mainly before 11pm. Cloudy, with a low around 30.
Friday
A chance of snow, mainly before 11am. Mostly cloudy, with a high near 32.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 31.
Saturday Night
A slight chance of snow. Partly cloudy, with a low around 23.
Sunday
A chance of snow. Partly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles SW Georgetown MT
 45.96°N 113.5°W (Elev. 8360 ft)
1:02 am MST Dec 8, 2025
4am MST Dec 8, 2025-6pm MST Dec 14, 2025
 
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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