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

13°F

-11°C

Humidity 91%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 11°F (-12°C)
Visibility NA
Last update 18 Apr 07:15 AM MDT
Extended Forecast for

12 Miles NE Big Sky MT

  • Today

    Today: Sunny, with a high near 47. Light and variable wind becoming west southwest around 6 mph in the afternoon.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 23. South southwest wind around 5 mph becoming calm after midnight.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. Light south wind.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 64. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38. South wind 3 to 5 mph.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67. South wind 5 to 8 mph, with gusts as high as 22 mph.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. South wind 5 to 7 mph, with gusts as high as 21 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after noon. Partly sunny, with a high near 57.

    High: 57 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 47. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Tonight
Partly cloudy, with a low around 23. South southwest wind around 5 mph becoming calm after midnight.
Sunday
Sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 33. Light south wind.
Monday
Mostly sunny, with a high near 64. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 38. South wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 67. South wind 5 to 8 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 40. South wind 5 to 7 mph, with gusts as high as 21 mph.
Wednesday
Rain likely, mainly after noon. Partly sunny, with a high near 57.
Wednesday Night
Rain before 9pm, then rain and snow. Mostly cloudy, with a low around 29.
Thursday
Snow. Mostly cloudy, with a high near 40.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 20.
Friday
A chance of snow. Partly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NE Big Sky MT
 45.39°N 111.19°W (Elev. 6998 ft)
Last Update:
3:47 am MDT Apr 18, 2026
Forecast Valid:
7am MDT Apr 18, 2026-6pm MDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation