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

34°F

1°C

Humidity 99%
Wind Speed SSE 1 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 11 Apr 06:45 AM MDT
Extended Forecast for

13 Miles ESE Big Sky MT

  • Today

    Today: A chance of snow showers between 1pm and 3pm, then a chance of snow after 3pm. Some thunder is also possible. Partly sunny, with a high near 45. Windy, with a south southwest wind 25 to 33 mph, with gusts as high as 49 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 45 °F

    Windy. Partly
    Sunny then
    Chance Snow
    Showers

  • Tonight

    Tonight: A chance of snow showers between 7pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 29. Breezy, with a southwest wind 16 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance Snow
    Showers and
    Breezy then
    Partly Cloudy

  • Sunday

    Sunday: Snow showers after noon. Some thunder is also possible. High near 41. South southwest wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Mostly Sunny
    then Snow
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 27. Breezy, with a south southwest wind around 23 mph, with gusts as high as 33 mph. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Breezy.
    Chance Snow
    then Slight
    Chance Snow

  • Monday

    Monday: Snow likely, mainly after noon. Mostly cloudy, with a high near 34. Breezy, with a south southwest wind around 23 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Breezy.
    Chance Snow
    then Snow
    Likely

  • Monday Night

    Monday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 25. West southwest wind 14 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 25 °F

    Snow Likely
    then Chance
    Snow

  • Tuesday

    Tuesday: A 50 percent chance of snow. Partly sunny, with a high near 35. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 33 mph. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Chance Snow
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 26. South southwest wind 16 to 18 mph, with gusts as high as 34 mph.

    Low: 26 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Snow likely, mainly after noon. Mostly cloudy, with a high near 34. Breezy.

    High: 34 °F

    Snow Likely
    and Breezy

Detailed Forecast

Today
A chance of snow showers between 1pm and 3pm, then a chance of snow after 3pm. Some thunder is also possible. Partly sunny, with a high near 45. Windy, with a south southwest wind 25 to 33 mph, with gusts as high as 49 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tonight
A chance of snow showers between 7pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 29. Breezy, with a southwest wind 16 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday
Snow showers after noon. Some thunder is also possible. High near 41. South southwest wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday Night
A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 27. Breezy, with a south southwest wind around 23 mph, with gusts as high as 33 mph. New snow accumulation of less than a half inch possible.
Monday
Snow likely, mainly after noon. Mostly cloudy, with a high near 34. Breezy, with a south southwest wind around 23 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Monday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 25. West southwest wind 14 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Tuesday
A 50 percent chance of snow. Partly sunny, with a high near 35. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 33 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
Partly cloudy, with a low around 26. South southwest wind 16 to 18 mph, with gusts as high as 34 mph.
Wednesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 34. Breezy.
Wednesday Night
Snow. Cloudy, with a low around 22. Breezy.
Thursday
Snow. Cloudy, with a high near 25.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 12.
Friday
A chance of snow. Partly sunny, with a high near 26.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ESE Big Sky MT
 45.23°N 111.07°W (Elev. 9354 ft)
Last Update:
3:27 am MDT Apr 11, 2026
Forecast Valid:
7am MDT Apr 11, 2026-6pm MDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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