Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

29°F

-2°C

Humidity 69%
Wind Speed ESE 8 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Wind Chill21°F (-6°C)
Last update 19 Apr 05:00 AM MDT
Extended Forecast for

6 Miles ESE Big Sky MT

  • Today

    Today: Sunny, with a high near 55. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 35. Light south southeast wind.

    Low: 35 °F

    Increasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 61. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. South wind 3 to 6 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. Light south wind becoming south southwest 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41. South southeast wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 41 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain before noon, then rain showers likely between noon and 3pm, then rain likely, possibly mixed with snow showers after 3pm. Some thunder is also possible.  Partly sunny, with a high near 53. South southwest wind 5 to 15 mph, with gusts as high as 28 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 53 °F

    Slight Chance
    Rain then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all snow after midnight. The snow could be heavy at times.  Cloudy, with a low around 29. South southwest wind 5 to 13 mph, with gusts as high as 25 mph.

    Low: 29 °F

    Rain/Snow
    then Heavy
    Snow

  • Thursday

    Thursday: Snow, mainly before noon.  Mostly cloudy, with a high near 36.

    High: 36 °F

    Snow

Detailed Forecast

Today
Sunny, with a high near 55. Calm wind becoming south southwest around 6 mph in the afternoon.
Tonight
Increasing clouds, with a low around 35. Light south southeast wind.
Monday
Sunny, with a high near 61. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 39. South wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 63. Light south wind becoming south southwest 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 41. South southeast wind 5 to 9 mph, with gusts as high as 21 mph.
Wednesday
A slight chance of rain before noon, then rain showers likely between noon and 3pm, then rain likely, possibly mixed with snow showers after 3pm. Some thunder is also possible. Partly sunny, with a high near 53. South southwest wind 5 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow, becoming all snow after midnight. The snow could be heavy at times. Cloudy, with a low around 29. South southwest wind 5 to 13 mph, with gusts as high as 25 mph.
Thursday
Snow, mainly before noon. Mostly cloudy, with a high near 36.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 20.
Friday
A chance of snow. Partly sunny, with a high near 36.
Friday Night
A slight chance of snow. Partly cloudy, with a low around 20.
Saturday
A chance of snow. Partly sunny, with a high near 40.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Big Sky MT
 45.24°N 111.22°W (Elev. 7129 ft)
3:32 am MDT Apr 19, 2026
5am MDT Apr 19, 2026-6pm MDT Apr 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database