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

26°F

-3°C

Humidity 97%
Wind Speed NNW 0 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 30 Apr 02:45 AM MDT
Extended Forecast for

6 Miles ESE Big Sky MT

  • Overnight

    Overnight: Mostly clear, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 46. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 46 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27. North wind around 6 mph becoming calm in the evening.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57. Calm wind.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 60. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. Light south wind.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers after noon. Partly sunny, with a high near 60. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 60 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 23. Calm wind.
Thursday
Mostly sunny, with a high near 46. Calm wind becoming north 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 27. North wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 57. Calm wind.
Friday Night
Mostly clear, with a low around 34. Calm wind.
Saturday
Mostly sunny, with a high near 60. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 37. Light south wind.
Sunday
A chance of showers after noon. Partly sunny, with a high near 60. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 36.
Monday
A slight chance of rain after noon. Mostly sunny, with a high near 60.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 36.
Tuesday
A chance of rain and snow. Mostly sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Big Sky MT
 45.24°N 111.22°W (Elev. 7129 ft)
Last Update:
12:31 am MDT Apr 30, 2026
Forecast Valid:
3am MDT Apr 30, 2026-6pm MDT May 6, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation