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

42°F

6°C

Humidity 52%
Wind Speed ESE 3 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 17 Oct 11:30 PM MDT
Extended Forecast for

8 Miles E Big Sky MT

  • Tonight

    Tonight: Partly cloudy, with a low around 32. South wind 9 to 16 mph, with gusts as high as 29 mph.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49. South southwest wind 5 to 8 mph.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. South wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 50. South wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. South wind 8 to 11 mph, with gusts as high as 18 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. South wind 5 to 8 mph.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35. South wind 3 to 6 mph.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50. South wind 6 to 8 mph.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 32. South wind 9 to 16 mph, with gusts as high as 29 mph.
Sunday
Mostly sunny, with a high near 49. South southwest wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 33. South wind 6 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 50. South wind 9 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 36. South wind 8 to 11 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 49. South wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 35. South wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 50. South wind 6 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
A chance of rain after noon. Mostly sunny, with a high near 50.
Thursday Night
Rain likely. Mostly cloudy, with a low around 37.
Friday
Rain and snow. Cloudy, with a high near 40.
Friday Night
Rain and snow. Mostly cloudy, with a low around 30.
Saturday
A chance of snow. Partly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles E Big Sky MT
 45.27°N 111.17°W (Elev. 8484 ft)
Last Update:
9:46 pm MDT Oct 17, 2026
Forecast Valid:
11pm MDT Oct 17, 2026-6pm MDT Oct 24, 2026
 
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