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

40°F

4°C

Humidity 63%
Wind Speed SW 14 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 15 Apr 02:00 PM 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
  • This Afternoon

    This Afternoon: Snow before 3pm, then snow showers, mainly after 3pm. Some thunder is also possible.  High near 35. Southwest wind around 14 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. Total daytime snow accumulation of 3 to 5 inches possible.

    High: 35 °F

    Snow

  • Tonight

    Tonight: Snow, mainly before 9pm. The snow could be heavy at times.  Low around 12. West wind 5 to 13 mph, with gusts as high as 32 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 12 °F

    Heavy Snow
    then Chance
    Snow

  • Thursday

    Thursday: Snow likely, mainly after 3pm.  Mostly cloudy, with a high near 22. West northwest wind 5 to 11 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 22 °F

    Snow Likely

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 14. West wind 5 to 11 mph, with gusts as high as 29 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 14 °F

    Snow Likely

  • Friday

    Friday: Snow.  High near 26. Light west wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 26 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 26 °F

    Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 12.

    Low: 12 °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 23.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Snow before 3pm, then snow showers, mainly after 3pm. Some thunder is also possible. High near 35. Southwest wind around 14 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Snow, mainly before 9pm. The snow could be heavy at times. Low around 12. West wind 5 to 13 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Thursday
Snow likely, mainly after 3pm. Mostly cloudy, with a high near 22. West northwest wind 5 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 14. West wind 5 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday
Snow. High near 26. Light west wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Sunny, with a high near 40.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
A chance of rain and snow. Mostly sunny, with a high near 55.
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 15, 2026
2pm 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