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

41°F

5°C

Humidity 53%
Wind Speed SSE 8 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 17 Oct 01:15 AM MDT
Extended Forecast for

11 Miles NE Big Sky MT

  • Overnight

    Overnight: Partly cloudy, with a low around 34. South wind around 16 mph, with gusts as high as 23 mph.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64. South wind 13 to 16 mph, with gusts as high as 23 mph.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33. South wind 5 to 15 mph, with gusts as high as 22 mph.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 61. South wind around 5 mph becoming light and variable in the afternoon.

    High: 61 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33. South wind 3 to 6 mph.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 64. South wind 5 to 7 mph.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. South wind 3 to 8 mph. Winds could gust as high as 18 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain after noon. Mostly sunny, with a high near 61. South wind around 5 mph becoming calm in the afternoon.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain. Partly cloudy, with a low around 33.

    Low: 33 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Partly cloudy, with a low around 34. South wind around 16 mph, with gusts as high as 23 mph.
Saturday
Mostly sunny, with a high near 64. South wind 13 to 16 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 33. South wind 5 to 15 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 61. South wind around 5 mph becoming light and variable in the afternoon.
Sunday Night
Mostly clear, with a low around 33. South wind 3 to 6 mph.
Monday
Sunny, with a high near 64. South wind 5 to 7 mph.
Monday Night
Partly cloudy, with a low around 34. South wind 3 to 8 mph. Winds could gust as high as 18 mph.
Tuesday
A slight chance of rain after noon. Mostly sunny, with a high near 61. South wind around 5 mph becoming calm in the afternoon.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 33.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
A chance of rain. Partly sunny, with a high near 59.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 33.
Friday
Rain and snow. Mostly cloudy, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NE Big Sky MT
 45.38°N 111.15°W (Elev. 6798 ft)
Last Update:
12:31 am MDT Oct 17, 2026
Forecast Valid:
1am MDT Oct 17, 2026-6pm MDT Oct 23, 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