Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

36°F

2°C

Humidity 93%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 18 Jun 02:15 AM MDT
Extended Forecast for

15 Miles ESE Big Sky MT

  • Overnight

    Overnight: Mostly clear, with a low around 37. West wind around 7 mph.

    Low: 37 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 59. West wind 7 to 17 mph, with gusts as high as 30 mph.

    High: 59 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38. West northwest wind 12 to 17 mph becoming light and variable  after midnight. Winds could gust as high as 30 mph.

    Low: 38 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 64. East wind 5 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 64 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47. North northwest wind 5 to 9 mph becoming light and variable  after midnight.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 55. Southwest wind around 7 mph.  Chance of precipitation is 90%.

    High: 55 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before midnight.  Low around 42. West wind around 8 mph.  Chance of precipitation is 80%.

    Low: 42 °F

    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 57. West wind 6 to 10 mph.

    High: 57 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 37. West wind around 7 mph.
Thursday
Sunny, with a high near 59. West wind 7 to 17 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 38. West northwest wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.
Juneteenth
Partly sunny, with a high near 64. East wind 5 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Mostly cloudy, with a low around 47. North northwest wind 5 to 9 mph becoming light and variable after midnight.
Saturday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 55. Southwest wind around 7 mph. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before midnight. Low around 42. West wind around 8 mph. Chance of precipitation is 80%.
Sunday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57. West wind 6 to 10 mph.
Sunday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 37.
Monday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Big Sky MT
 45.17°N 111.06°W (Elev. 8999 ft)
12:32 am MDT Jun 18, 2026
2am MDT Jun 18, 2026-6pm MDT Jun 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database