National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

Lat: 45.34534°NLon: 111.17261°WElev: 5699.0ft.

unknown precip

39°F

4°C

Humidity 95%
Wind Speed E 5 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 12 Apr 07:00 PM MDT
Extended Forecast for

13 Miles ESE Big Sky MT

  • Tonight

    Tonight: A 40 percent chance of snow showers, mainly before 8pm. Mostly cloudy, with a low around 23. Breezy, with a south southwest wind 23 to 25 mph, with gusts as high as 32 mph. Total nighttime snow accumulation of less than a half inch possible.

    Low: 23 °F

    Breezy.
    Chance Snow
    Showers then
    Partly Cloudy

  • Monday

    Monday: A chance of snow between 9am and noon, then snow showers likely after noon. Some thunder is also possible. Mostly cloudy, with a high near 32. Breezy, with a southwest wind 22 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 32 °F

    Breezy.
    Chance Snow
    then Snow
    Showers
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 24. West southwest wind 14 to 21 mph, with gusts as high as 30 mph. New snow accumulation of 1 to 2 inches possible.

    Low: 24 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 36. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 32 mph.

    High: 36 °F

    Mostly Sunny
    then Slight
    Chance Snow
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27. Breezy, with a south southwest wind around 25 mph, with gusts as high as 34 mph.

    Low: 27 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Snow, mainly after noon. High near 34. Windy, with a south southwest wind 26 to 32 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Chance Snow
    and Breezy
    then Snow and
    Windy

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times. Low around 19. Breezy, with a south southwest wind 17 to 25 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 19 °F

    Heavy Snow
    and Breezy

  • Thursday

    Thursday: Snow. The snow could be heavy at times. Cloudy, with a high near 22. West northwest wind 14 to 17 mph, with gusts as high as 31 mph.

    High: 22 °F

    Heavy Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 11.

    Low: 11 °F

    Snow Likely

Detailed Forecast

Tonight
A 40 percent chance of snow showers, mainly before 8pm. Mostly cloudy, with a low around 23. Breezy, with a south southwest wind 23 to 25 mph, with gusts as high as 32 mph. Total nighttime snow accumulation of less than a half inch possible.
Monday
A chance of snow between 9am and noon, then snow showers likely after noon. Some thunder is also possible. Mostly cloudy, with a high near 32. Breezy, with a southwest wind 22 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Monday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 24. West southwest wind 14 to 21 mph, with gusts as high as 30 mph. New snow accumulation of 1 to 2 inches possible.
Tuesday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 36. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 32 mph.
Tuesday Night
Mostly cloudy, with a low around 27. Breezy, with a south southwest wind around 25 mph, with gusts as high as 34 mph.
Wednesday
Snow, mainly after noon. High near 34. Windy, with a south southwest wind 26 to 32 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 19. Breezy, with a south southwest wind 17 to 25 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Thursday
Snow. The snow could be heavy at times. Cloudy, with a high near 22. West northwest wind 14 to 17 mph, with gusts as high as 31 mph.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 11.
Friday
A chance of snow. Partly sunny, with a high near 23.
Friday Night
A slight chance of snow. Partly cloudy, with a low around 12.
Saturday
A slight chance of snow. Mostly sunny, with a high near 31.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 39.
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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:
5:27 pm MDT Apr 12, 2026
Forecast Valid:
7pm MDT Apr 12, 2026-6pm MDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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