Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

45°F

7°C

Humidity 56%
Wind Speed SE 2 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 15 Apr 08:45 PM MDT
Extended Forecast for

6 Miles ESE Big Sky MT

Winter Storm Warning until April 17, 12:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning until April 17, 12:00am

    NOW until 12:00am Fri

    Winter Storm Warning

  • Tonight

    Low: 22 °F

    Snow Showers

  • Thursday

    Thursday: Snow before noon, then snow showers, mainly after noon.  High near 28. Calm wind becoming northwest 5 to 7 mph in the afternoon.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 28 °F

    Snow

  • Thursday Night

    Thursday Night: Snow showers likely before midnight, then a slight chance of snow after midnight.  Mostly cloudy, with a low around 15. North wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 15 °F

    Snow Showers
    Likely then
    Slight Chance
    Snow

  • Friday

    Friday: Snow, mainly after noon.  High near 31. Calm wind becoming west northwest 5 to 7 mph in the afternoon.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 31 °F

    Chance Snow
    then Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around 15. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 15 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 43. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 43 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. South wind 3 to 6 mph.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 52. South wind 3 to 7 mph.

    High: 52 °F

    Sunny

Detailed Forecast

Tonight
Snow showers, mainly before midnight, then snow after midnight. Some thunder is also possible. Low around 22. South wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.
Thursday
Snow before noon, then snow showers, mainly after noon. High near 28. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Thursday Night
Snow showers likely before midnight, then a slight chance of snow after midnight. Mostly cloudy, with a low around 15. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Friday
Snow, mainly after noon. High near 31. Calm wind becoming west northwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 15. West northwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 43. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 24. South wind 3 to 6 mph.
Sunday
Sunny, with a high near 52. South wind 3 to 7 mph.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
A slight chance of rain. Sunny, with a high near 61.
Tuesday Night
A slight chance of rain and snow. Partly cloudy, with a low around 37.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 55.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Big Sky MT
 45.24°N 111.22°W (Elev. 7129 ft)
8:57 pm MDT Apr 15, 2026
9pm MDT Apr 15, 2026-6pm MDT Apr 22, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database