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

35°F

2°C

Humidity 84%
Wind Speed W 1 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 30 Mar 12:30 AM MDT
Extended Forecast for

14 Miles ESE Big Sky MT

  • Overnight

    Overnight: Partly cloudy, with a low around 32. Breezy, with a southwest wind 23 to 25 mph, with gusts as high as 38 mph.

    Low: 32 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Snow likely, mainly after 3pm. Mostly cloudy, with a high near 36. Windy, with a southwest wind 21 to 30 mph, with gusts as high as 49 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 36 °F

    Partly Sunny
    and Breezy
    then Snow
    Likely and
    Windy

  • Monday Night

    Monday Night: Snow, mainly before 4am. Low around 13. Northwest wind 15 to 20 mph becoming east 9 to 14 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 13 °F

    Snow then
    Chance Snow

  • Tuesday

    Tuesday: A slight chance of snow before 9am, then a chance of snow after noon. Partly sunny, with a high near 31. East wind 9 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.

    High: 31 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 26. South southwest wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Snow Likely
    then Chance
    Snow

  • Wednesday

    Wednesday: Snow likely, mainly after noon. Mostly cloudy, with a high near 35. South southwest wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday Night

    Wednesday Night: Snow. Low around 29. Breezy, with a south wind 22 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 29 °F

    Snow and
    Breezy

  • Thursday

    Thursday: Snow. The snow could be heavy at times. Cloudy, with a high near 30. Breezy, with a south wind 24 to 26 mph, with gusts as high as 39 mph.

    High: 30 °F

    Heavy Snow
    and Breezy

  • Thursday Night

    Thursday Night: Snow. The snow could be heavy at times. Mostly cloudy, with a low around 17. Breezy.

    Low: 17 °F

    Heavy Snow
    and Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 32. Breezy, with a southwest wind 23 to 25 mph, with gusts as high as 38 mph.
Monday
Snow likely, mainly after 3pm. Mostly cloudy, with a high near 36. Windy, with a southwest wind 21 to 30 mph, with gusts as high as 49 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Monday Night
Snow, mainly before 4am. Low around 13. Northwest wind 15 to 20 mph becoming east 9 to 14 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Tuesday
A slight chance of snow before 9am, then a chance of snow after noon. Partly sunny, with a high near 31. East wind 9 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 26. South southwest wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 35. South southwest wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow. Low around 29. Breezy, with a south wind 22 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow. The snow could be heavy at times. Cloudy, with a high near 30. Breezy, with a south wind 24 to 26 mph, with gusts as high as 39 mph.
Thursday Night
Snow. The snow could be heavy at times. Mostly cloudy, with a low around 17. Breezy.
Friday
Snow likely. Mostly cloudy, with a high near 22. Blustery.
Friday Night
A chance of snow. Mostly cloudy, with a low around 14.
Saturday
A slight chance of snow. Partly sunny, with a high near 29.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles ESE Big Sky MT
 45.17°N 111.09°W (Elev. 9400 ft)
Last Update:
9:22 pm MDT Mar 29, 2026
Forecast Valid:
12am MDT Mar 30, 2026-6pm MDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation