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Current conditions at

Karst US-191 MP 55.3 (MTKAR)

Lat: 45.34534°NLon: 111.17261°WElev: 5699.0ft.

unknown precip

23°F

-5°C

Humidity 83%
Wind Speed NNW 2 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Last update 21 Jan 06:00 PM MST
Extended Forecast for

14 Miles ESE Big Sky MT

  • Tonight

    Tonight: Partly cloudy, with a low around 6. Wind chill values as low as -5. West wind 10 to 13 mph.

    Low: 6 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 16. Wind chill values as low as -5. West wind 6 to 9 mph.

    High: 16 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -2. Wind chill values as low as -15. Northwest wind around 9 mph becoming north northeast in the evening.

    Low: -2 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of snow. Partly sunny and cold, with a high near 4. Wind chill values as low as -20. North northwest wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 4 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: Mostly clear, with a low around -6. North northwest wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 21 mph.

    Low: -6 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 8. West northwest wind around 11 mph, with gusts as high as 21 mph.

    High: 8 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 0. West southwest wind 13 to 15 mph, with gusts as high as 18 mph.

    Low: 0 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 12. Southwest wind around 15 mph, with gusts as high as 23 mph.

    High: 12 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 6. Wind chill values as low as -5. West wind 10 to 13 mph.
Thursday
Partly sunny, with a high near 16. Wind chill values as low as -5. West wind 6 to 9 mph.
Thursday Night
Mostly cloudy, with a low around -2. Wind chill values as low as -15. Northwest wind around 9 mph becoming north northeast in the evening.
Friday
A 20 percent chance of snow. Partly sunny and cold, with a high near 4. Wind chill values as low as -20. North northwest wind 9 to 14 mph, with gusts as high as 22 mph.
Friday Night
Mostly clear, with a low around -6. North northwest wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 21 mph.
Saturday
Mostly sunny, with a high near 8. West northwest wind around 11 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around 0. West southwest wind 13 to 15 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 12. Southwest wind around 15 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 2.
Monday
Mostly sunny, with a high near 17.
Monday Night
Mostly cloudy, with a low around 10.
Tuesday
Partly sunny, with a high near 22.
Tuesday Night
Mostly cloudy, with a low around 10.
Wednesday
Mostly sunny, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
14 Miles ESE Big Sky MT
 45.17°N 111.09°W (Elev. 9400 ft)
Last Update:
1:32 pm MST Jan 21, 2026
Forecast Valid:
6pm MST Jan 21, 2026-6pm MST Jan 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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