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

36°F

2°C

Humidity 100%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 02 Apr 08:15 AM MDT
Extended Forecast for

4 Miles E Big Sky MT

Winter Storm Warning April 2, 09:00am until April 3, 12:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Today

    Today: A chance of snow before 9am, then snow showers, mainly after 9am. Some thunder is also possible. High near 45. South wind 7 to 9 mph becoming west in the afternoon. Chance of precipitation is 90%. Total daytime snow accumulation of less than one inch possible.

    High: 45 °F

    Snow Showers
    Likely then
    Snow Showers

  • Tonight

    Tonight: Snow. Low around 25. West northwest wind around 9 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 25 °F

    Snow

  • Friday

    Friday: Snow likely, mainly before noon. Mostly cloudy, with a high near 46. Northwest wind around 7 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 46 °F

    Snow Likely
    then Chance
    Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 23. West northwest wind around 6 mph becoming calm in the evening.

    Low: 23 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 55. Calm wind.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 28. Calm wind.

    Low: 28 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 59. Calm wind.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of snow before 9am, then snow showers, mainly after 9am. Some thunder is also possible. High near 45. South wind 7 to 9 mph becoming west in the afternoon. Chance of precipitation is 90%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow. Low around 25. West northwest wind around 9 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Friday
Snow likely, mainly before noon. Mostly cloudy, with a high near 46. Northwest wind around 7 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Friday Night
Partly cloudy, with a low around 23. West northwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 55. Calm wind.
Saturday Night
Clear, with a low around 28. Calm wind.
Sunday
Sunny, with a high near 59. Calm wind.
Sunday Night
Partly cloudy, with a low around 32. Calm wind.
Monday
Mostly sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Sunny, with a high near 63.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 33.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Big Sky MT
 45.26°N 111.26°W (Elev. 5997 ft)
Last Update:
7:52 am MDT Apr 2, 2026
Forecast Valid:
8am MDT Apr 2, 2026-6pm MDT Apr 8, 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