Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Georgetown Lake (MTGTL)

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

NA

38°F

3°C

Humidity 66%
Wind Speed SW 13 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 15 Apr 10:45 AM MDT
Extended Forecast for

21 Miles SW Georgetown MT

Winter Weather Advisory April 15, 03:00pm until April 16, 09:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Today

    Today: Snow showers. The snow could be heavy at times. Some thunder is also possible.  High near 35. Southwest wind 11 to 14 mph, with gusts as high as 32 mph.  Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 7 inches possible.

    High: 35 °F

    Heavy Snow

  • Tonight

    Tonight: Snow showers, mainly before 9pm. The snow could be heavy at times.  Low around 13. West wind 5 to 13 mph, with gusts as high as 32 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 13 °F

    Heavy Snow
    then Chance
    Snow Showers

  • Thursday

    Thursday: Snow showers. Some thunder is also possible.  High near 22. West northwest wind 6 to 11 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 22 °F

    Snow Showers

  • Thursday Night

    Thursday Night: Snow showers likely, mainly before midnight.  Mostly cloudy, with a low around 14. Northwest wind 5 to 10 mph becoming light west  after midnight. Winds could gust as high as 29 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 14 °F

    Snow Showers
    Likely

  • Friday

    Friday: Snow showers likely, mainly after noon.  Mostly cloudy, with a high near 27. Light west wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 26 mph.  Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 27 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before midnight.  Partly cloudy, with a low around 13.

    Low: 13 °F

    Slight Chance
    Snow Showers
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

Today
Snow showers. The snow could be heavy at times. Some thunder is also possible. High near 35. Southwest wind 11 to 14 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 7 inches possible.
Tonight
Snow showers, mainly before 9pm. The snow could be heavy at times. Low around 13. West wind 5 to 13 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Thursday
Snow showers. Some thunder is also possible. High near 22. West northwest wind 6 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 14. Northwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely, mainly after noon. Mostly cloudy, with a high near 27. Light west wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Friday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 13.
Saturday
Sunny, with a high near 39.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
A slight chance of snow. Mostly sunny, with a high near 50.
Monday Night
A chance of snow. Partly cloudy, with a low around 31.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 52.
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 am MDT Apr 15, 2026
11am MDT Apr 15, 2026-6pm MDT Apr 21, 2026
 
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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