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

58°F

14°C

Humidity 81%
Wind Speed S 4 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 21 Jun 10:30 AM MDT
Extended Forecast for

14 Miles ENE Big Sky MT

  • Today

    Today: A slight chance of showers and thunderstorms between noon and 5pm. Mostly sunny, with a high near 56. West wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 56 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. Northwest wind 5 to 9 mph. Chance of precipitation is 30%.

    Low: 39 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms between noon and 2pm. Mostly sunny, with a high near 53. Northwest wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 53 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. North northwest wind 8 to 13 mph becoming light west northwest after midnight. Winds could gust as high as 22 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 57. Light and variable wind becoming north 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. North wind 6 to 13 mph becoming south southeast after midnight. Winds could gust as high as 21 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61. South southwest wind 5 to 13 mph becoming north in the morning. Winds could gust as high as 21 mph.

    High: 61 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. North northwest wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 18 mph.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers and thunderstorms between noon and 5pm. Mostly sunny, with a high near 56. West wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. Northwest wind 5 to 9 mph. Chance of precipitation is 30%.
Monday
A slight chance of showers and thunderstorms between noon and 2pm. Mostly sunny, with a high near 53. Northwest wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 36. North northwest wind 8 to 13 mph becoming light west northwest after midnight. Winds could gust as high as 22 mph.
Tuesday
Sunny, with a high near 57. Light and variable wind becoming north 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 40. North wind 6 to 13 mph becoming south southeast after midnight. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 61. South southwest wind 5 to 13 mph becoming north in the morning. Winds could gust as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 43. North northwest wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 18 mph.
Thursday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 64.
Thursday Night
Mostly cloudy, with a low around 46.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 63.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 43.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles ENE Big Sky MT
 45.32°N 111.05°W (Elev. 8901 ft)
Last Update:
8:47 am MDT Jun 21, 2026
Forecast Valid:
10am MDT Jun 21, 2026-6pm MDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation