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.

NA

31°F

-1°C

Humidity 87%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 19 Oct 02:15 AM MDT
Extended Forecast for

11 Miles NE Big Sky MT

  • Overnight

    Overnight: Mostly clear, with a low around 31. South southeast wind around 5 mph.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 65. South wind 3 to 6 mph.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32. South wind 5 to 7 mph becoming calm after midnight.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly after 4pm. Mostly sunny, with a high near 63. Calm wind.

    High: 63 °F

    Mostly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before midnight. Partly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 33. Calm wind becoming south 5 to 7 mph.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 63. Calm wind becoming south 5 to 7 mph in the morning.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Rain, mainly after midnight. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 31. South southeast wind around 5 mph.
Monday
Sunny, with a high near 65. South wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 32. South wind 5 to 7 mph becoming calm after midnight.
Tuesday
A 30 percent chance of rain, mainly after 4pm. Mostly sunny, with a high near 63. Calm wind.
Tuesday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 32. Calm wind.
Wednesday
Mostly sunny, with a high near 64. Calm wind becoming south southeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 33. Calm wind becoming south 5 to 7 mph.
Thursday
Mostly sunny, with a high near 63. Calm wind becoming south 5 to 7 mph in the morning.
Thursday Night
Rain, mainly after midnight. Mostly cloudy, with a low around 32.
Friday
Rain before 9am, then rain and snow. Cloudy, with a high near 43.
Friday Night
Rain and snow likely. Mostly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
A slight chance of rain and snow. Mostly sunny, with a high near 49.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NE Big Sky MT
 45.37°N 111.18°W (Elev. 6453 ft)
Last Update:
12:31 am MDT Oct 19, 2026
Forecast Valid:
2am MDT Oct 19, 2026-6pm MDT Oct 25, 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