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

32°F

0°C

Humidity 100%
Wind Speed NW 3 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 30 Mar 08:30 PM MDT
Extended Forecast for

14 Miles ESE Big Sky MT

  • Tonight

    Tonight: Snow, mainly before midnight. Low around 20. West wind 9 to 16 mph becoming east after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Snow then
    Chance Snow

  • Tuesday

    Tuesday: Snow, mainly after 3pm. High near 33. South southwest wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 33 °F

    Chance Snow
    then Snow

  • Tuesday Night

    Tuesday Night: Snow, mainly before 11pm. The snow could be heavy at times. Low around 26. Southwest wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 26 °F

    Heavy Snow
    then Chance
    Snow

  • Wednesday

    Wednesday: Snow, mainly between noon and 3pm, then snow showers after 3pm. Some thunder is also possible. High near 34. South southwest wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Chance Snow
    then Snow

  • Wednesday Night

    Wednesday Night: Snow. Low around 28. South wind 15 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 28 °F

    Snow

  • Thursday

    Thursday: Snow before noon, then snow showers between noon and 3pm, then snow after 3pm. The snow could be heavy at times. Some thunder is also possible. High near 28. Breezy, with a south wind 21 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 28 °F

    Heavy Snow
    and Breezy

  • Thursday Night

    Thursday Night: Snow. The snow could be heavy at times. Low around 18. Southwest wind 17 to 21 mph becoming west northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 18 °F

    Heavy Snow

  • Friday

    Friday: Snow likely. Mostly cloudy, with a high near 24. Northwest wind around 17 mph, with gusts as high as 28 mph.

    High: 24 °F

    Snow Likely

  • Friday Night

    Friday Night: A slight chance of snow before midnight. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Slight Chance
    Snow then
    Partly Cloudy

Detailed Forecast

Tonight
Snow, mainly before midnight. Low around 20. West wind 9 to 16 mph becoming east after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.
Tuesday
Snow, mainly after 3pm. High near 33. South southwest wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Tuesday Night
Snow, mainly before 11pm. The snow could be heavy at times. Low around 26. Southwest wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Wednesday
Snow, mainly between noon and 3pm, then snow showers after 3pm. Some thunder is also possible. High near 34. South southwest wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow. Low around 28. South wind 15 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday
Snow before noon, then snow showers between noon and 3pm, then snow after 3pm. The snow could be heavy at times. Some thunder is also possible. High near 28. Breezy, with a south wind 21 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Thursday Night
Snow. The snow could be heavy at times. Low around 18. Southwest wind 17 to 21 mph becoming west northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Friday
Snow likely. Mostly cloudy, with a high near 24. Northwest wind around 17 mph, with gusts as high as 28 mph.
Friday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 18.
Saturday
Sunny, with a high near 35.
Saturday Night
Mostly clear, with a low around 22.
Sunday
Sunny, with a high near 40.
Sunday Night
Partly cloudy, with a low around 25.
Monday
A slight chance of snow. Mostly sunny, with a high near 42.
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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:
8:17 pm MDT Mar 30, 2026
Forecast Valid:
8pm MDT Mar 30, 2026-6pm MDT Apr 6, 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