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

28°F

-2°C

Humidity 100%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 07 Apr 03:45 AM MDT
Extended Forecast for

13 Miles ESE Big Sky MT

  • Today

    Today: A slight chance of snow between 2pm and 3pm, then a slight chance of snow showers after 3pm. Some thunder is also possible. Mostly sunny, with a high near 45. Windy, with a west southwest wind 21 to 26 mph increasing to 31 to 36 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 20%.

    High: 45 °F

    Windy. Mostly
    Sunny then
    Slight Chance
    Snow

  • Tonight

    Tonight: A slight chance of snow between 7pm and 8pm. Partly cloudy, with a low around 20. Windy, with a west northwest wind 31 to 36 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 20%.

    Low: 20 °F

    Slight Chance
    Snow and
    Windy then
    Mostly Clear
    and Blustery

  • Wednesday

    Wednesday: Sunny, with a high near 40. West wind 14 to 17 mph, with gusts as high as 28 mph.

    High: 40 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. West southwest wind 11 to 18 mph, with gusts as high as 28 mph.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 42. West northwest wind 10 to 14 mph, with gusts as high as 23 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 21 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of snow after noon. Mostly sunny, with a high near 49. South wind 10 to 15 mph, with gusts as high as 23 mph. Little or no snow accumulation expected.

    High: 49 °F

    Mostly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 34. South wind around 11 mph, with gusts as high as 22 mph.

    Low: 34 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain and snow after noon. Partly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny
    then Chance
    Rain/Snow

Detailed Forecast

Today
A slight chance of snow between 2pm and 3pm, then a slight chance of snow showers after 3pm. Some thunder is also possible. Mostly sunny, with a high near 45. Windy, with a west southwest wind 21 to 26 mph increasing to 31 to 36 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 20%.
Tonight
A slight chance of snow between 7pm and 8pm. Partly cloudy, with a low around 20. Windy, with a west northwest wind 31 to 36 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 40. West wind 14 to 17 mph, with gusts as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 27. West southwest wind 11 to 18 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 23 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 21 mph.
Friday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 49. South wind 10 to 15 mph, with gusts as high as 23 mph. Little or no snow accumulation expected.
Friday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 34. South wind around 11 mph, with gusts as high as 22 mph.
Saturday
A chance of rain and snow after noon. Partly sunny, with a high near 48.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 33.
Sunday
Snow. Mostly cloudy, with a high near 42.
Sunday Night
Snow likely. Mostly cloudy, with a low around 28.
Monday
Snow. Mostly cloudy, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ESE Big Sky MT
 45.23°N 111.07°W (Elev. 9354 ft)
Last Update:
12:32 am MDT Apr 7, 2026
Forecast Valid:
4am MDT Apr 7, 2026-6pm MDT Apr 13, 2026
 
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Additional Resources

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Chance of Precipitation