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

36°F

2°C

Humidity 65%
Wind Speed SSW 16 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill26°F (-3°C)
Last update 15 Apr 01:00 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
  • Overnight

    Overnight: Snow likely, mainly after 5am. The snow could be heavy at times.  Mostly cloudy, with a low around 27. Southwest wind 8 to 10 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. Total nighttime snow accumulation of around an inch possible.

    Low: 27 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow before 3pm, then snow showers after 3pm. The snow could be heavy at times. Some thunder is also possible.  High near 35. Southwest wind 8 to 14 mph, with gusts as high as 32 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    High: 35 °F

    Heavy Snow

  • Wednesday Night

    Wednesday Night: Snow, 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

  • Thursday

    Thursday: Snow before 3pm, then snow showers after 3pm. 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

  • Thursday Night

    Thursday Night: Snow 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 Likely

  • Friday

    Friday: Snow likely, mainly after noon.  Mostly cloudy, with a high near 27. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 27 °F

    Snow Likely

  • Friday Night

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

    Low: 13 °F

    Slight Chance
    Snow 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

Detailed Forecast

Overnight
Snow likely, mainly after 5am. The snow could be heavy at times. Mostly cloudy, with a low around 27. Southwest wind 8 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of around an inch possible.
Wednesday
Snow before 3pm, then snow showers after 3pm. The snow could be heavy at times. Some thunder is also possible. High near 35. Southwest wind 8 to 14 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Wednesday Night
Snow, 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 before 3pm, then snow showers after 3pm. 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 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 likely, mainly after noon. Mostly cloudy, with a high near 27. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Friday Night
A 20 percent chance of snow 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)
12:22 am MDT Apr 15, 2026
1am 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