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

55°F

13°C

Humidity 38%
Wind Speed NW 4 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 05 Apr 06:45 PM MDT
Extended Forecast for

12 Miles NE Big Sky MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Light and variable wind becoming south southeast around 5 mph.

    Low: 30 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 55. Calm wind becoming northwest around 5 mph.

    High: 55 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33. Light and variable wind becoming south around 5 mph after midnight.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after noon. Mostly sunny, with a high near 58. South southwest wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 58 °F

    Mostly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 9pm, then a chance of snow between 9pm and midnight. Mostly cloudy, with a low around 24. West wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 24 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 48. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 48 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. West wind around 6 mph becoming calm in the evening.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of snow between noon and 3pm, then a slight chance of rain after 3pm. Mostly sunny, with a high near 52. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 52 °F

    Sunny then
    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 30. Light and variable wind becoming south southeast around 5 mph.
Monday
Partly sunny, with a high near 55. Calm wind becoming northwest around 5 mph.
Monday Night
Partly cloudy, with a low around 33. Light and variable wind becoming south around 5 mph after midnight.
Tuesday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 58. South southwest wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 37 mph.
Tuesday Night
A chance of rain and snow before 9pm, then a chance of snow between 9pm and midnight. Mostly cloudy, with a low around 24. West wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday
Sunny, with a high near 48. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 26. West wind around 6 mph becoming calm in the evening.
Thursday
A slight chance of snow between noon and 3pm, then a slight chance of rain after 3pm. Mostly 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 29.
Friday
A slight chance of rain after noon. Mostly sunny, with a high near 58.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 35.
Saturday
A chance of rain. Partly sunny, with a high near 60.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 35.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NE Big Sky MT
 45.39°N 111.19°W (Elev. 6998 ft)
Last Update:
4:22 pm MDT Apr 5, 2026
Forecast Valid:
7pm MDT Apr 5, 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