National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Hazardous Weather Conditions

Current conditions at

Georgetown Lake (MTGTL)

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

NA

35°F

2°C

Humidity 71%
Wind Speed SW 10 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Wind Chill27°F (-3°C)
Last update 15 Apr 03:15 AM MDT
Extended Forecast for

10 Miles S Georgetown MT

Winter Weather Advisory April 15, 06:00pm until April 16, 09:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: A 50 percent chance of snow showers after 4am. Mostly cloudy, with a low around 24. Breezy, with a west southwest wind around 22 mph, with gusts as high as 29 mph. Total nighttime snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    Showers and
    Breezy

  • Wednesday

    Wednesday: Snow showers. The snow could be heavy at times. Some thunder is also possible. High near 29. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 29 °F

    Heavy Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before 9pm. The snow could be heavy at times. Low around 10. Wind chill values as low as -8. Breezy, with a west wind 16 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 10 °F

    Heavy Snow
    and Breezy
    then Chance
    Snow Showers

  • Thursday

    Thursday: Snow showers. Some thunder is also possible. High near 15. Wind chill values as low as -7. West northwest wind 16 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 15 °F

    Snow Showers

  • Thursday Night

    Thursday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 11. Blustery, with a west wind 15 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 11 °F

    Snow Showers
    Likely and
    Blustery

  • Friday

    Friday: Snow showers. High near 20. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 20 °F

    Snow Showers

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 12.

    Low: 12 °F

    Slight Chance
    Snow Showers
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 33.

    High: 33 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of snow showers after 4am. Mostly cloudy, with a low around 24. Breezy, with a west southwest wind around 22 mph, with gusts as high as 29 mph. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Snow showers. The snow could be heavy at times. Some thunder is also possible. High near 29. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Wednesday Night
Snow showers, mainly before 9pm. The snow could be heavy at times. Low around 10. Wind chill values as low as -8. Breezy, with a west wind 16 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Thursday
Snow showers. Some thunder is also possible. High near 15. Wind chill values as low as -7. West northwest wind 16 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 11. Blustery, with a west wind 15 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow showers. High near 20. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 12.
Saturday
Sunny, with a high near 33.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
Mostly sunny, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 26.
Monday
A slight chance of snow. Mostly sunny, with a high near 43.
Monday Night
A slight chance of snow. Partly cloudy, with a low around 29.
Tuesday
A chance of snow. Partly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles S Georgetown MT
 46.06°N 113.28°W (Elev. 8914 ft)
Last Update:
2:01 am MDT Apr 15, 2026
Forecast Valid:
3am MDT Apr 15, 2026-6pm MDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation