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 47%
Wind Speed NW 5 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility NA
Wind Chill31°F (-1°C)
Last update 25 Apr 01:45 PM MDT
Extended Forecast for

12 Miles NE Big Sky MT

  • This Afternoon

    This Afternoon: A 20 percent chance of snow showers after 3pm. Partly sunny, with a high near 38. Calm wind.

    High: 38 °F

    Slight Chance
    Snow Showers

  • Tonight

    Tonight: A slight chance of snow showers before 7pm, then a slight chance of snow after 2am. Mostly cloudy, with a low around 18. Calm wind. Chance of precipitation is 20%.

    Low: 18 °F

    Slight Chance
    Snow Showers

  • Sunday

    Sunday: A 50 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 37. Calm wind becoming north around 6 mph in the afternoon. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Slight Chance
    Snow then
    Chance Snow

  • Sunday Night

    Sunday Night: Snow showers likely. Mostly cloudy, with a low around 20. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 20 °F

    Snow Showers
    Likely

  • Monday

    Monday: Snow showers. High near 39. Light north northeast wind. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 39 °F

    Snow Showers

  • Monday Night

    Monday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 23. Calm wind. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Snow

  • Tuesday

    Tuesday: A chance of snow before noon, then snow showers likely after noon. Some thunder is also possible. Partly sunny, with a high near 46. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 46 °F

    Chance Snow
    then Snow
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 3am, then a slight chance of snow. Mostly cloudy, with a low around 27. Light and variable wind.

    Low: 27 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of snow before 9am, then rain and snow showers likely. Some thunder is also possible. Partly sunny, with a high near 47.

    High: 47 °F

    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
A 20 percent chance of snow showers after 3pm. Partly sunny, with a high near 38. Calm wind.
Tonight
A slight chance of snow showers before 7pm, then a slight chance of snow after 2am. Mostly cloudy, with a low around 18. Calm wind. Chance of precipitation is 20%.
Sunday
A 50 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 37. Calm wind becoming north around 6 mph in the afternoon. New snow accumulation of less than a half inch possible.
Sunday Night
Snow showers likely. Mostly cloudy, with a low around 20. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Monday
Snow showers. High near 39. Light north northeast wind. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 23. Calm wind. New snow accumulation of less than a half inch possible.
Tuesday
A chance of snow before noon, then snow showers likely after noon. Some thunder is also possible. Partly sunny, with a high near 46. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
A chance of rain and snow before 3am, then a slight chance of snow. Mostly cloudy, with a low around 27. Light and variable wind.
Wednesday
A chance of snow before 9am, then rain and snow showers likely. Some thunder is also possible. Partly sunny, with a high near 47.
Wednesday Night
A slight chance of rain and snow before 9pm, then a slight chance of snow between 9pm and midnight. Mostly cloudy, with a low around 28.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Mostly clear, with a low around 28.
Friday
A slight chance of rain. Mostly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NE Big Sky MT
 45.39°N 111.19°W (Elev. 6998 ft)
Last Update:
1:21 pm MDT Apr 25, 2026
Forecast Valid:
2pm MDT Apr 25, 2026-6pm MDT May 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation