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

30°F

-1°C

Humidity 67%
Wind Speed SE 8 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Wind Chill22°F (-6°C)
Last update 19 Apr 04:30 AM MDT
Extended Forecast for

12 Miles NE Big Sky MT

  • Today

    Today: Sunny, with a high near 57. Light and variable wind.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 34. Light and variable wind.

    Low: 34 °F

    Increasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 64. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39. South wind around 5 mph.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67. South wind 3 to 8 mph. Winds could gust as high as 21 mph.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. South wind around 6 mph, with gusts as high as 21 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 56. South southwest wind 5 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.

    High: 56 °F

    Slight Chance
    Rain then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Rain before 9pm, then rain and snow between 9pm and 3am, then snow after 3am. The snow could be heavy at times. Cloudy, with a low around 28. South southwest wind 5 to 11 mph becoming west northwest after midnight. Winds could gust as high as 24 mph.

    Low: 28 °F

    Rain/Snow

  • Thursday

    Thursday: Snow, mainly before noon. Mostly cloudy, with a high near 38.

    High: 38 °F

    Snow

Detailed Forecast

Today
Sunny, with a high near 57. Light and variable wind.
Tonight
Increasing clouds, with a low around 34. Light and variable wind.
Monday
Sunny, with a high near 64. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 39. South wind around 5 mph.
Tuesday
Mostly sunny, with a high near 67. South wind 3 to 8 mph. Winds could gust as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 41. South wind around 6 mph, with gusts as high as 21 mph.
Wednesday
A slight chance of rain, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 56. South southwest wind 5 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Wednesday Night
Rain before 9pm, then rain and snow between 9pm and 3am, then snow after 3am. The snow could be heavy at times. Cloudy, with a low around 28. South southwest wind 5 to 11 mph becoming west northwest after midnight. Winds could gust as high as 24 mph.
Thursday
Snow, mainly before noon. Mostly cloudy, with a high near 38.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 19.
Friday
A chance of snow. Partly sunny, with a high near 38.
Friday Night
A chance of snow. Mostly cloudy, with a low around 19.
Saturday
A chance of snow. Partly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NE Big Sky MT
 45.39°N 111.19°W (Elev. 6998 ft)
Last Update:
3:32 am MDT Apr 19, 2026
Forecast Valid:
4am MDT Apr 19, 2026-6pm MDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation