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

37°F

3°C

Humidity 68%
Wind Speed SW 12 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill29°F (-2°C)
Last update 15 Apr 10:30 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 37. Southwest wind around 10 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 7 inches possible.

    High: 37 °F

    Heavy Snow

  • Tonight

    Tonight: Snow showers, mainly before 9pm. The snow could be heavy at times.  Low around 13. West southwest wind 5 to 10 mph becoming light west  after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 13 °F

    Heavy Snow
    then Chance
    Snow Showers

  • Thursday

    Thursday: Snow showers. Some thunder is also possible.  High near 23. Light west wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 28 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 23 °F

    Snow Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of snow showers.  Mostly cloudy, with a low around 16. Northwest wind 5 to 8 mph becoming calm  after midnight. Winds could gust as high as 26 mph.  New snow accumulation of less than a half inch possible.

    Low: 16 °F

    Chance Snow
    Showers

  • Friday

    Friday: Snow showers likely, mainly after noon.  Mostly cloudy, with a high near 28. Calm wind becoming northwest 5 to 8 mph in the morning. Winds could gust as high as 25 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 28 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Today
Snow showers. The snow could be heavy at times. Some thunder is also possible. High near 37. Southwest wind around 10 mph, with gusts as high as 31 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 southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Thursday
Snow showers. Some thunder is also possible. High near 23. Light west wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 16. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 26 mph. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely, mainly after noon. Mostly cloudy, with a high near 28. Calm wind becoming northwest 5 to 8 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Friday Night
Partly cloudy, with a low around 15.
Saturday
Sunny, with a high near 40.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
A slight chance of snow. Mostly sunny, with a high near 52.
Monday Night
A slight chance of rain and snow. Partly cloudy, with a low around 33.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 54.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles SW Georgetown MT
 45.99°N 113.57°W (Elev. 7684 ft)
2:01 am MDT Apr 15, 2026
10am 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