Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

37°F

3°C

Humidity 78%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 15 Apr 04:15 AM MDT
Extended Forecast for

15 Miles ENE Big Sky MT

Winter Storm Watch April 15, 06:00pm until April 17, 12:00am
Click here for hazard details and duration
Winter Storm Watch
  • Today

    Today: Snow likely, mainly after 1pm.  Mostly cloudy, with a high near 35. Windy, with a south southwest wind 22 to 31 mph, with gusts as high as 50 mph.  Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

    High: 35 °F

    Chance Snow
    and Breezy
    then Snow
    Likely and
    Windy

  • Tonight

    Tonight: A chance of snow before 10pm, then snow showers between 10pm and midnight, then snow after midnight. The snow could be heavy at times. Some thunder is also possible.  Patchy blowing snow before 9pm, then widespread blowing snow after 10pm. Low around 15. Windy, with a south southwest wind 26 to 31 mph becoming west northwest 16 to 21 mph after midnight. Winds could gust as high as 47 mph.  Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    Low: 15 °F

    Heavy Snow
    and Blowing
    Snow

  • Thursday

    Thursday: Snow.  High near 18. Wind chill values as low as zero. Northwest wind 14 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 18 °F

    Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 10. Wind chill values as low as -5. West wind 11 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 10 °F

    Snow Likely
    then Slight
    Chance Snow

  • Friday

    Friday: Snow, mainly after noon.  High near 22. North northwest wind 11 to 17 mph, with gusts as high as 29 mph.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 22 °F

    Chance Snow
    then Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow before midnight.  Mostly cloudy, with a low around 12. North northwest wind 10 to 17 mph becoming west southwest after midnight. Winds could gust as high as 28 mph.  New snow accumulation of less than a half inch possible.

    Low: 12 °F

    Chance Snow
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 32. South southwest wind 14 to 16 mph, with gusts as high as 28 mph.

    High: 32 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 19. South southwest wind around 14 mph, with gusts as high as 26 mph.

    Low: 19 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

Detailed Forecast

Today
Snow likely, mainly after 1pm. Mostly cloudy, with a high near 35. Windy, with a south southwest wind 22 to 31 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A chance of snow before 10pm, then snow showers between 10pm and midnight, then snow after midnight. The snow could be heavy at times. Some thunder is also possible. Patchy blowing snow before 9pm, then widespread blowing snow after 10pm. Low around 15. Windy, with a south southwest wind 26 to 31 mph becoming west northwest 16 to 21 mph after midnight. Winds could gust as high as 47 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Thursday
Snow. High near 18. Wind chill values as low as zero. Northwest wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 10. Wind chill values as low as -5. West wind 11 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow, mainly after noon. High near 22. North northwest wind 11 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Friday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 12. North northwest wind 10 to 17 mph becoming west southwest after midnight. Winds could gust as high as 28 mph. New snow accumulation of less than a half inch possible.
Saturday
Sunny, with a high near 32. South southwest wind 14 to 16 mph, with gusts as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 19. South southwest wind around 14 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 41.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 46.
Monday Night
A slight chance of snow. Partly cloudy, with a low around 30.
Tuesday
A chance of rain and snow. Mostly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ENE Big Sky MT
 45.32°N 111.05°W (Elev. 8901 ft)
4:02 am MDT Apr 15, 2026
4am MDT Apr 15, 2026-6pm MDT Apr 21, 2026
 
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Additional Resources

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