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

37°F

3°C

Humidity 96%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 11 Apr 12:45 AM MDT
Extended Forecast for

14 Miles ESE Big Sky MT

  • Overnight

    Overnight: Partly cloudy, with a low around 33. Breezy, with a south southwest wind 17 to 22 mph.

    Low: 33 °F

    Partly Cloudy
    and Breezy

  • Saturday

    Saturday: A slight 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 44. Windy, with a south southwest wind 22 to 31 mph, with gusts as high as 48 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 44 °F

    Windy. Mostly
    Sunny then
    Chance Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow showers, mainly between 7pm and midnight. Mostly cloudy, with a low around 28. Breezy, with a southwest wind 15 to 23 mph, with gusts as high as 34 mph. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow
    Showers and
    Breezy then
    Mostly Cloudy

  • Sunday

    Sunday: Snow showers after noon. Some thunder is also possible. High near 40. South southwest wind 14 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 40 °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 26. Breezy, with a south southwest wind 20 to 22 mph, with gusts as high as 32 mph. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance Snow
    and Breezy
    then Slight
    Chance Snow

  • Monday

    Monday: Snow likely, mainly between noon and 3pm, then snow showers likely after 3pm. Some thunder is also possible. Mostly cloudy, with a high near 33. Breezy, with a south southwest wind 20 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Breezy.
    Chance Snow
    then Snow
    Likely

  • Monday Night

    Monday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 24. West southwest wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 24 °F

    Snow Likely

  • Tuesday

    Tuesday: A chance of snow. Partly sunny, with a high near 34. Southwest wind 13 to 21 mph, with gusts as high as 32 mph.

    High: 34 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25. Breezy.

    Low: 25 °F

    Partly Cloudy
    and Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 33. Breezy, with a south southwest wind 17 to 22 mph.
Saturday
A slight 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 44. Windy, with a south southwest wind 22 to 31 mph, with gusts as high as 48 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday Night
A 50 percent chance of snow showers, mainly between 7pm and midnight. Mostly cloudy, with a low around 28. Breezy, with a southwest wind 15 to 23 mph, with gusts as high as 34 mph. New snow accumulation of less than a half inch possible.
Sunday
Snow showers after noon. Some thunder is also possible. High near 40. South southwest wind 14 to 20 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 26. Breezy, with a south southwest wind 20 to 22 mph, with gusts as high as 32 mph. New snow accumulation of less than a half inch possible.
Monday
Snow likely, mainly between noon and 3pm, then snow showers likely after 3pm. Some thunder is also possible. Mostly cloudy, with a high near 33. Breezy, with a south southwest wind 20 to 22 mph, with gusts as high as 34 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 24. West southwest wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Tuesday
A chance of snow. Partly sunny, with a high near 34. Southwest wind 13 to 21 mph, with gusts as high as 32 mph.
Tuesday Night
Partly cloudy, with a low around 25. Breezy.
Wednesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 33. Breezy.
Wednesday Night
Snow. Cloudy, with a low around 21. Breezy.
Thursday
Snow. Cloudy, with a high near 24.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 11.
Friday
A chance of snow. Partly sunny, with a high near 25.
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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:
12:32 am MDT Apr 11, 2026
Forecast Valid:
1am MDT Apr 11, 2026-6pm MDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation