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

12 Miles NE Big Sky MT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 55. Calm wind.

    High: 55 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 34. Light and variable wind.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 57. South southeast wind 6 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 36 mph.

    High: 57 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 9pm, then a slight chance of snow between 9pm and midnight. Partly cloudy, with a low around 25. West northwest wind 5 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

    Low: 25 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 48. West wind 3 to 6 mph. Winds could gust as high as 18 mph.

    High: 48 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. West wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 53. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Light and variable wind.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 55. Calm wind.
Tonight
Partly cloudy, with a low around 34. Light and variable wind.
Tuesday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 57. South southeast wind 6 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 36 mph.
Tuesday Night
A slight chance of rain before 9pm, then a slight chance of snow between 9pm and midnight. Partly cloudy, with a low around 25. West northwest wind 5 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 48. West wind 3 to 6 mph. Winds could gust as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 29. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 53. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 29. Light and variable wind.
Friday
Mostly sunny, with a high near 60.
Friday Night
A slight chance of rain before midnight. Partly cloudy, with a low around 37.
Saturday
A chance of rain. Partly sunny, with a high near 60.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 36.
Sunday
Rain likely. Partly sunny, with a high near 55.
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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:
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

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation