National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

We are hiring an entry level meteorologist! Applications will be accepted through January 29.

Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

15°F

-9°C

Humidity 77%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 9°F (-13°C)
Visibility NA
Last update 22 Jan 11:30 AM MST
Extended Forecast for

6 Miles ESE Big Sky MT

  • Today

    Today: Partly sunny, with a high near 27. Calm wind.

    High: 27 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 5. Calm wind.

    Low: 5 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 13. Wind chill values as low as zero. Calm wind becoming north around 6 mph in the afternoon.

    High: 13 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -3. North wind around 5 mph becoming calm in the evening.

    Low: -3 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 16. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 16 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 5. Light southwest wind.

    Low: 5 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 25. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 25 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 10. South southwest wind around 6 mph.

    Low: 10 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 27. Calm wind.
Tonight
Mostly cloudy, with a low around 5. Calm wind.
Friday
Partly sunny, with a high near 13. Wind chill values as low as zero. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around -3. North wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 16. Calm wind becoming west northwest around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 5. Light southwest wind.
Sunday
Mostly sunny, with a high near 25. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 10. South southwest wind around 6 mph.
Monday
Mostly sunny, with a high near 29.
Monday Night
Mostly cloudy, with a low around 16.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 34.
Basemap Options
Click map to change the forecast location
Loading map...
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:
10:02 am MST Jan 22, 2026
Forecast Valid:
11am MST Jan 22, 2026-6pm MST Jan 28, 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