Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

54°F

12°C

Humidity 36%
Wind Speed SSE 5 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 20 May 05:00 PM MDT
Extended Forecast for

4 Miles E Big Sky MT

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 59. Light west wind.

    High: 59 °F

    Chance
    Showers

  • Tonight

    Tonight: Rain before 11pm, then rain and snow. Some thunder is also possible.  Low around 34. Calm wind.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow showers before 2pm, then a slight chance of rain showers between 2pm and 3pm. Some thunder is also possible.  High near 52. Calm wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 52 °F

    Rain/Snow
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 64. Calm wind.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 75. Calm wind becoming west around 5 mph in the afternoon.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42. West southwest wind 5 to 7 mph becoming calm  in the evening. Winds could gust as high as 20 mph.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of rain after noon.  Sunny, with a high near 77.

    High: 77 °F

    Sunny then
    Slight Chance
    Rain

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 59. Light west wind.
Tonight
Rain before 11pm, then rain and snow. Some thunder is also possible. Low around 34. Calm wind. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Rain and snow showers before 2pm, then a slight chance of rain showers between 2pm and 3pm. Some thunder is also possible. High near 52. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Partly cloudy, with a low around 28. Calm wind.
Friday
Mostly sunny, with a high near 64. Calm wind.
Friday Night
Partly cloudy, with a low around 36. Calm wind.
Saturday
Sunny, with a high near 75. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 42. West southwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Sunday
A slight chance of rain after noon. Sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 43.
Memorial Day
Sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
A chance of rain and thunderstorms. Mostly sunny, with a high near 73.
Tuesday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain and thunderstorms. Partly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Big Sky MT
 45.26°N 111.26°W (Elev. 5997 ft)
4:17 pm MDT May 20, 2026
5pm MDT May 20, 2026-6pm MDT May 27, 2026
 
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Additional Resources

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