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

79°F

26°C

Humidity 24%
Wind Speed SE 5 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Heat Index78°F (26°C)
Last update 04 Jul 01:45 PM MDT
Extended Forecast for

6 Miles NE Big Sky MT

  • Independence Day

    Independence Day: Sunny, with a high near 72. Southwest wind around 9 mph, with gusts as high as 21 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. Southwest wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 74. Light southwest wind becoming west southwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph.

    High: 74 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 51. West wind around 5 mph becoming calm after midnight.

    Low: 51 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 71 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 50. East wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 69 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 50. West northwest wind around 6 mph becoming calm.

    Low: 50 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72.

    High: 72 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Independence Day
Sunny, with a high near 72. Southwest wind around 9 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 50. Southwest wind 5 to 9 mph, with gusts as high as 21 mph.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 74. Light southwest wind becoming west southwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 51. West wind around 5 mph becoming calm after midnight.
Monday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 50. East wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 50. West northwest wind around 6 mph becoming calm.
Wednesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NE Big Sky MT
 45.33°N 111.24°W (Elev. 8481 ft)
Last Update:
12:31 pm MDT Jul 4, 2026
Forecast Valid:
2pm MDT Jul 4, 2026-6pm MDT Jul 10, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation