Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over the Northern Mariana Islands. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes through Tuesday. Heavy snow is expected in the Pacific Northwest. Read More >

Current conditions at

Georgetown Lake (MTGTL)

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

NA

34°F

1°C

Humidity 79%
Wind Speed SW 12 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 13 Apr 11:30 PM MDT
Extended Forecast for

21 Miles SW Georgetown MT

  • Tonight

    Tonight: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around 24. West wind 3 to 5 mph.

    Low: 24 °F

    Slight Chance
    Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 38. Light west southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 29 mph.

    High: 38 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow after midnight.  Mostly cloudy, with a low around 27. Southwest wind 8 to 10 mph, with gusts as high as 29 mph.  New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Snow.  High near 35. Southwest wind 8 to 13 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 35 °F

    Snow Likely
    then Snow

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times.  Low around 15. West wind 7 to 11 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 15 °F

    Heavy Snow
    then Snow
    Likely

  • Thursday

    Thursday: Snow before noon, then snow showers after noon. Some thunder is also possible.  High near 23. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 23 °F

    Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 14. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 14 °F

    Snow Likely

  • Friday

    Friday: Snow likely.  Mostly cloudy, with a high near 28.

    High: 28 °F

    Snow Likely

  • Friday Night

    Friday Night: A slight chance of snow before midnight.  Partly cloudy, with a low around 14.

    Low: 14 °F

    Slight Chance
    Snow then
    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24. West wind 3 to 5 mph.
Tuesday
Mostly cloudy, with a high near 38. Light west southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 29 mph.
Tuesday Night
A 40 percent chance of snow after midnight. Mostly cloudy, with a low around 27. Southwest wind 8 to 10 mph, with gusts as high as 29 mph. New snow accumulation of less than a half inch possible.
Wednesday
Snow. High near 35. Southwest wind 8 to 13 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 15. West wind 7 to 11 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Thursday
Snow before noon, then snow showers after noon. Some thunder is also possible. High near 23. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 14. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday
Snow likely. Mostly cloudy, with a high near 28.
Friday Night
A slight chance of snow before midnight. Partly cloudy, with a low around 14.
Saturday
Sunny, with a high near 39.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
A slight chance of snow. Mostly sunny, with a high near 44.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 27.
Monday
A chance of snow. Partly sunny, with a high near 43.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles SW Georgetown MT
 45.96°N 113.53°W (Elev. 7598 ft)
2:01 pm MDT Apr 13, 2026
11pm MDT Apr 13, 2026-6pm MDT Apr 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database