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

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

57°F

14°C

Humidity 37%
Wind Speed NNW 5 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 06 Apr 02:15 PM MDT
Extended Forecast for

6 Miles ESE Big Sky MT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 54. Calm wind.

    High: 54 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 55. South wind 5 to 10 mph becoming west southwest 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 55 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25. West wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 32 mph.

    Low: 25 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 47. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 47 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30. West wind around 6 mph becoming calm in the evening.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 52. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 52 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. Light and variable wind.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 54. Calm wind.
Tonight
Partly cloudy, with a low around 35. Calm wind.
Tuesday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 55. South wind 5 to 10 mph becoming west southwest 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.
Tuesday Night
Partly cloudy, with a low around 25. West wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 32 mph.
Wednesday
Sunny, with a high near 47. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 30. West wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 52. Calm wind becoming west northwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 30. Light and variable wind.
Friday
Mostly sunny, with a high near 57.
Friday Night
A slight chance of rain before midnight. Partly cloudy, with a low around 38.
Saturday
A chance of rain. Partly sunny, with a high near 58.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 38.
Sunday
Rain likely. Partly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Big Sky MT
 45.24°N 111.22°W (Elev. 7129 ft)
Last Update:
1:01 pm MDT Apr 6, 2026
Forecast Valid:
2pm MDT Apr 6, 2026-6pm MDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation