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.

unknown precip

39°F

4°C

Humidity 47%
Wind Speed SE 8 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 18 Apr 12:15 PM MDT
Extended Forecast for

14 Miles ESE Big Sky MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 33. West southwest wind around 17 mph, with gusts as high as 28 mph.

    High: 33 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 20. Southwest wind 14 to 17 mph, with gusts as high as 26 mph.

    Low: 20 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 42. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 42 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30. Southwest wind 14 to 16 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 49. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33. South southwest wind around 17 mph, with gusts as high as 24 mph.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. South southwest wind 16 to 20 mph, with gusts as high as 33 mph.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. Breezy, with a south wind 18 to 22 mph, with gusts as high as 33 mph.

    Low: 35 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Snow likely, mainly after noon. Partly sunny, with a high near 42. Breezy.

    High: 42 °F

    Snow Likely
    and Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 33. West southwest wind around 17 mph, with gusts as high as 28 mph.
Tonight
Mostly clear, with a low around 20. Southwest wind 14 to 17 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 42. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 30. Southwest wind 14 to 16 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 49. Southwest wind around 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 33. South southwest wind around 17 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 52. South southwest wind 16 to 20 mph, with gusts as high as 33 mph.
Tuesday Night
Mostly cloudy, with a low around 35. Breezy, with a south wind 18 to 22 mph, with gusts as high as 33 mph.
Wednesday
Snow likely, mainly after noon. Partly sunny, with a high near 42. Breezy.
Wednesday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 23. Breezy.
Thursday
Snow. Mostly cloudy, with a high near 26. Blustery.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 15.
Friday
A chance of snow. Partly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles ESE Big Sky MT
 45.17°N 111.09°W (Elev. 9400 ft)
Last Update:
12:31 pm MDT Apr 18, 2026
Forecast Valid:
12pm MDT Apr 18, 2026-6pm MDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation