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

38°F

3°C

Humidity 51%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 08 Apr 03:45 AM MDT
Extended Forecast for

14 Miles ESE Big Sky MT

  • Today

    Today: Sunny, with a high near 40. West wind 15 to 17 mph, with gusts as high as 29 mph.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 28. West wind 10 to 16 mph, with gusts as high as 25 mph.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 41. West northwest wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 41 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Northwest wind 9 to 13 mph becoming southeast after midnight. Winds could gust as high as 18 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of snow after noon. Partly sunny, with a high near 49. South wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 49 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: A chance of rain and snow before midnight. Mostly cloudy, with a low around 35. South wind 14 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 35 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow showers after noon. Some thunder is also possible. Partly sunny, with a high near 48. Breezy, with a south wind 18 to 24 mph, with gusts as high as 39 mph. Little or no snow accumulation expected.

    High: 48 °F

    Breezy.
    Mostly Sunny
    then Chance
    Snow Showers

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 32. Breezy, with a south wind 18 to 23 mph, with gusts as high as 33 mph.

    Low: 32 °F

    Chance Snow
    and Breezy

  • Sunday

    Sunday: Snow. Mostly cloudy, with a high near 38. Breezy.

    High: 38 °F

    Snow and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 40. West wind 15 to 17 mph, with gusts as high as 29 mph.
Tonight
Partly cloudy, with a low around 28. West wind 10 to 16 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 41. West northwest wind 9 to 13 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 28. Northwest wind 9 to 13 mph becoming southeast after midnight. Winds could gust as high as 18 mph.
Friday
A 20 percent chance of snow after noon. Partly sunny, with a high near 49. South wind 10 to 14 mph, with gusts as high as 24 mph.
Friday Night
A chance of rain and snow before midnight. Mostly cloudy, with a low around 35. South wind 14 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
A 50 percent chance of snow showers after noon. Some thunder is also possible. Partly sunny, with a high near 48. Breezy, with a south wind 18 to 24 mph, with gusts as high as 39 mph. Little or no snow accumulation expected.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 32. Breezy, with a south wind 18 to 23 mph, with gusts as high as 33 mph.
Sunday
Snow. Mostly cloudy, with a high near 38. Breezy.
Sunday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 26.
Monday
Snow likely. Mostly cloudy, with a high near 31.
Monday Night
A chance of snow. Mostly cloudy, with a low around 22.
Tuesday
A chance of snow. Partly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
14 Miles ESE Big Sky MT
 45.17°N 111.09°W (Elev. 9400 ft)
Last Update:
4:43 am MDT Apr 8, 2026
Forecast Valid:
4am MDT Apr 8, 2026-6pm MDT Apr 14, 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