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

Hazardous Weather Conditions

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

31°F

-1°C

Humidity 85%
Wind Speed NNW 8 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill24°F (-4°C)
Last update 02 Apr 06:45 PM MDT
Extended Forecast for

6 Miles ESE Big Sky MT

Winter Storm Warning April 2, 07:16pm until April 3, 12:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 2, 07:16pm until April 3, 12:00pm

    NOW until 12:00pm Fri

    Winter Storm Warning

  • Tonight

    Low: 24 °F

    Heavy Snow

  • Friday

    Friday: Snow, mainly before 11am. High near 38. Northwest wind 7 to 9 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 38 °F

    Snow then
    Chance Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before 8pm. Partly cloudy, with a low around 19. West northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 19 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 46. Calm wind becoming west around 5 mph in the afternoon.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 51. Calm wind.

    High: 51 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 54. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 54 °F

    Mostly Sunny

Detailed Forecast

Tonight
Snow. The snow could be heavy at times. Low around 24. West northwest wind 8 to 10 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 5 to 9 inches possible.
Friday
Snow, mainly before 11am. High near 38. Northwest wind 7 to 9 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Friday Night
A 20 percent chance of snow before 8pm. Partly cloudy, with a low around 19. West northwest wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 46. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 27. Calm wind.
Sunday
Sunny, with a high near 51. Calm wind.
Sunday Night
Partly cloudy, with a low around 30. Calm wind.
Monday
Mostly sunny, with a high near 54. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
A slight chance of rain after noon. Mostly sunny, with a high near 56.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 33.
Wednesday
A chance of snow. Partly sunny, with a high near 47.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 26.
Thursday
A chance of snow. Partly sunny, with a high near 42.
Basemap Options
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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:
7:02 pm MDT Apr 2, 2026
Forecast Valid:
7pm MDT Apr 2, 2026-6pm MDT Apr 9, 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