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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

21°F

-6°C

Humidity 84%
Wind Speed NNW 3 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility NA
Last update 20 Jan 05:00 PM MST
Extended Forecast for

15 Miles ENE Big Sky MT

  • Tonight

    Tonight: Mostly clear, with a low around 8. Wind chill values as low as -5. West wind 9 to 16 mph, with gusts as high as 21 mph.

    Low: 8 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 19. Wind chill values as low as -5. West wind 7 to 13 mph.

    High: 19 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 6. Wind chill values as low as -5. West southwest wind 9 to 11 mph.

    Low: 6 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 14. Wind chill values as low as -10. West northwest wind 7 to 9 mph.

    High: 14 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -1. West wind 8 to 10 mph.

    Low: -1 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 7. West northwest wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 7 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -4. West wind around 10 mph.

    Low: -4 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 11. West wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 11 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 3.

    Low: 3 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 8. Wind chill values as low as -5. West wind 9 to 16 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 19. Wind chill values as low as -5. West wind 7 to 13 mph.
Wednesday Night
Mostly cloudy, with a low around 6. Wind chill values as low as -5. West southwest wind 9 to 11 mph.
Thursday
Mostly sunny, with a high near 14. Wind chill values as low as -10. West northwest wind 7 to 9 mph.
Thursday Night
Partly cloudy, with a low around -1. West wind 8 to 10 mph.
Friday
Mostly sunny, with a high near 7. West northwest wind 8 to 10 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around -4. West wind around 10 mph.
Saturday
Mostly sunny, with a high near 11. West wind 10 to 13 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 3.
Sunday
Mostly sunny, with a high near 18.
Sunday Night
Partly cloudy, with a low around 10.
Monday
Mostly sunny, with a high near 23.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 26.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ENE Big Sky MT
 45.32°N 111.05°W (Elev. 8901 ft)
3:44 pm MST Jan 20, 2026
5pm MST Jan 20, 2026-6pm MST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database