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

62°F

17°C

Humidity 22%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 07 Apr 05:00 PM MDT
Extended Forecast for

13 Miles ESE Big Sky MT

  • This Afternoon

    This Afternoon: A 20 percent chance of snow. Mostly sunny, with a steady temperature around 43. Windy, with a west wind around 31 mph, with gusts as high as 45 mph.

    High: 43 °F

    Slight Chance
    Snow and
    Windy

  • Tonight

    Tonight: Partly cloudy, with a low around 21. Windy, with a west northwest wind 26 to 31 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 44 mph.

    Low: 21 °F

    Partly Cloudy
    and Windy

  • Wednesday

    Wednesday: Sunny, with a high near 40. West wind 13 to 17 mph, with gusts as high as 28 mph.

    High: 40 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. West wind 13 to 17 mph, with gusts as high as 28 mph.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 42. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 42 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Northwest wind 10 to 14 mph becoming southeast after midnight. Winds could gust as high as 20 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of snow after noon. Mostly 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 before midnight. Mostly cloudy, with a low around 35. South wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 35 °F

    Chance Rain
    then Partly
    Cloudy

  • Saturday

    Saturday: A chance of rain and snow after noon. Partly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny
    then Chance
    Rain/Snow

Detailed Forecast

This Afternoon
A 20 percent chance of snow. Mostly sunny, with a steady temperature around 43. Windy, with a west wind around 31 mph, with gusts as high as 45 mph.
Tonight
Partly cloudy, with a low around 21. Windy, with a west northwest wind 26 to 31 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 44 mph.
Wednesday
Sunny, with a high near 40. West wind 13 to 17 mph, with gusts as high as 28 mph.
Wednesday Night
Mostly cloudy, with a low around 28. West wind 13 to 17 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 42. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 28. Northwest wind 10 to 14 mph becoming southeast after midnight. Winds could gust as high as 20 mph.
Friday
A 20 percent chance of snow after noon. Mostly 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 before midnight. Mostly cloudy, with a low around 35. South wind 10 to 13 mph, with gusts as high as 23 mph.
Saturday
A chance of rain and snow after noon. Partly sunny, with a high near 49.
Saturday Night
A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 33.
Sunday
Snow. Mostly cloudy, with a high near 41.
Sunday Night
Snow likely. Mostly cloudy, with a low around 26.
Monday
Snow likely. Mostly cloudy, with a high near 32.
Monday Night
A chance of snow. Mostly cloudy, with a low around 24.
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:
4:27 pm MDT Apr 7, 2026
Forecast Valid:
5pm MDT Apr 7, 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