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

Karst US-191 MP 55.3 (MTKAR)

Lat: 45.34534°NLon: 111.17261°WElev: 5699.0ft.

unknown precip

35°F

2°C

Humidity 96%
Wind Speed SSE 1 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 12 Apr 07:15 AM MDT
Extended Forecast for

14 Miles ESE Big Sky MT

  • Today

    Today: Snow showers likely, mainly between noon and 5pm. Some thunder is also possible. Partly sunny, with a high near 39. South southwest wind 14 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

    High: 39 °F

    Mostly Sunny
    then Snow
    Showers
    Likely

  • Tonight

    Tonight: A 40 percent chance of snow, mainly before 3am. Mostly cloudy, with a low around 24. Breezy, with a southwest wind around 22 mph, with gusts as high as 31 mph. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Chance Snow
    and Breezy

  • Monday

    Monday: Snow likely, mainly after noon. Partly sunny, with a high near 32. Breezy, with a southwest wind 20 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 32 °F

    Breezy.
    Chance Snow
    then Snow
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 24. Southwest wind 11 to 18 mph, with gusts as high as 28 mph. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow after noon. Partly sunny, with a high near 35. Southwest wind 13 to 21 mph, with gusts as high as 32 mph.

    High: 35 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26. Breezy, with a south southwest wind 22 to 24 mph, with gusts as high as 32 mph.

    Low: 26 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Snow, mainly after noon. High near 32. Breezy, with a south southwest wind 25 to 29 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 32 °F

    Breezy.
    Chance Snow
    then Snow

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times. Cloudy, with a low around 20. Windy, with a south southwest wind 24 to 31 mph, with gusts as high as 44 mph.

    Low: 20 °F

    Heavy Snow
    and Windy

  • Thursday

    Thursday: Snow. The snow could be heavy at times. Cloudy, with a high near 22. Breezy.

    High: 22 °F

    Heavy Snow
    and Breezy

Detailed Forecast

Today
Snow showers likely, mainly between noon and 5pm. Some thunder is also possible. Partly sunny, with a high near 39. South southwest wind 14 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A 40 percent chance of snow, mainly before 3am. Mostly cloudy, with a low around 24. Breezy, with a southwest wind around 22 mph, with gusts as high as 31 mph. New snow accumulation of less than one inch possible.
Monday
Snow likely, mainly after noon. Partly sunny, with a high near 32. Breezy, with a southwest wind 20 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Monday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 24. Southwest wind 11 to 18 mph, with gusts as high as 28 mph. New snow accumulation of less than one inch possible.
Tuesday
A 20 percent chance of snow after noon. Partly sunny, with a high near 35. Southwest wind 13 to 21 mph, with gusts as high as 32 mph.
Tuesday Night
Mostly cloudy, with a low around 26. Breezy, with a south southwest wind 22 to 24 mph, with gusts as high as 32 mph.
Wednesday
Snow, mainly after noon. High near 32. Breezy, with a south southwest wind 25 to 29 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 20. Windy, with a south southwest wind 24 to 31 mph, with gusts as high as 44 mph.
Thursday
Snow. The snow could be heavy at times. Cloudy, with a high near 22. Breezy.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 11.
Friday
A chance of snow. Partly sunny, with a high near 23.
Friday Night
A slight chance of snow. Partly cloudy, with a low around 11.
Saturday
A slight chance of snow. Mostly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles ESE Big Sky MT
 45.17°N 111.09°W (Elev. 9400 ft)
Last Update:
3:26 am MDT Apr 12, 2026
Forecast Valid:
7am MDT Apr 12, 2026-6pm MDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation