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 48%
Wind Speed NW 9 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 08 Apr 04:45 AM MDT
Extended Forecast for

13 Miles ESE Big Sky MT

  • Today

    Today: Sunny, with a high near 40. West wind 15 to 18 mph, with gusts as high as 29 mph.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 28. West wind 13 to 17 mph, with gusts as high as 26 mph.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 42. West northwest wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 42 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. North northwest wind 9 to 13 mph becoming south 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 11 to 14 mph, with gusts as high as 23 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 36. South wind 14 to 20 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 36 °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 49. Breezy, with a south wind 21 to 26 mph, with gusts as high as 40 mph. Little or no snow accumulation expected.

    High: 49 °F

    Breezy.
    Mostly Sunny
    then Chance
    Snow Showers

  • Saturday Night

    Saturday Night: A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 34. South wind 14 to 18 mph, with gusts as high as 36 mph.

    Low: 34 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Sunday

    Sunday: Snow. Mostly cloudy, with a high near 40.

    High: 40 °F

    Snow

Detailed Forecast

Today
Sunny, with a high near 40. West wind 15 to 18 mph, with gusts as high as 29 mph.
Tonight
Partly cloudy, with a low around 28. West wind 13 to 17 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 42. West northwest wind 10 to 13 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 28. North northwest wind 9 to 13 mph becoming south 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 11 to 14 mph, with gusts as high as 23 mph.
Friday Night
A chance of rain and snow before midnight. Mostly cloudy, with a low around 36. South wind 14 to 20 mph, with gusts as high as 23 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 49. Breezy, with a south wind 21 to 26 mph, with gusts as high as 40 mph. Little or no snow accumulation expected.
Saturday Night
A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 34. South wind 14 to 18 mph, with gusts as high as 36 mph.
Sunday
Snow. Mostly cloudy, with a high near 40.
Sunday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 26.
Monday
Snow. Mostly cloudy, with a high near 32.
Monday Night
A chance of snow. Mostly cloudy, with a low around 22.
Tuesday
A chance of snow. Partly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ESE Big Sky MT
 45.23°N 111.07°W (Elev. 9354 ft)
Last Update:
4:43 am MDT Apr 8, 2026
Forecast Valid:
5am MDT Apr 8, 2026-6pm MDT Apr 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation