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.

NA

38°F

3°C

Humidity 60%
Wind Speed ESE 10 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill31°F (-1°C)
Last update 17 Oct 08:30 AM MDT
Extended Forecast for

10 Miles NE Big Sky MT

  • Today

    Today: Mostly sunny, with a high near 64. South wind 14 to 16 mph, with gusts as high as 23 mph.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 29. South wind 5 to 15 mph, with gusts as high as 23 mph.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 61. South southwest wind 3 to 5 mph.

    High: 61 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 30. South wind 3 to 7 mph.

    Low: 30 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63. South wind 6 to 8 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. South wind 5 to 8 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 60. South wind around 6 mph becoming calm in the afternoon.

    High: 60 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain. Partly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 64. South wind 14 to 16 mph, with gusts as high as 23 mph.
Tonight
Partly cloudy, with a low around 29. South wind 5 to 15 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 61. South southwest wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 30. South wind 3 to 7 mph.
Monday
Sunny, with a high near 63. South wind 6 to 8 mph.
Monday Night
Partly cloudy, with a low around 31. South wind 5 to 8 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 60. South wind around 6 mph becoming calm in the afternoon.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 30. Calm wind.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
A chance of rain. Partly sunny, with a high near 58.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 30.
Friday
Rain and snow. Mostly cloudy, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NE Big Sky MT
 45.35°N 111.18°W (Elev. 6430 ft)
Last Update:
4:01 am MDT Oct 17, 2026
Forecast Valid:
9am MDT Oct 17, 2026-6pm MDT Oct 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation