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

28°F

-2°C

Humidity 98%
Wind Speed NNW 0 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 31 Mar 06:30 AM MDT
Extended Forecast for

6 Miles ESE Big Sky MT

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

  • Today

    Today: A chance of snow before 1pm, then rain and snow. High near 43. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

    High: 43 °F

    Chance Snow
    then
    Rain/Snow

  • Tonight

    Tonight: Snow, possibly mixed with rain before 10pm, then a chance of snow. Low around 31. Light and variable wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow
    then Chance
    Snow

  • Wednesday

    Wednesday: Snow likely before 3pm, then rain likely, possibly mixed with snow showers. Some thunder is also possible. Mostly cloudy, with a high near 45. Light south southwest wind. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 45 °F

    Chance Snow
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all snow after 9pm. Low around 33. Light south wind. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain/Snow
    then Snow

  • Thursday

    Thursday: Snow. High near 38. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 38 °F

    Snow

  • Thursday Night

    Thursday Night: Snow. Low around 23. West southwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 23 °F

    Snow

  • Friday

    Friday: Snow likely, mainly before noon. Mostly cloudy, with a high near 35. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 35 °F

    Snow Likely

  • Friday Night

    Friday Night: A slight chance of snow before midnight. Partly cloudy, with a low around 21. Northwest wind around 6 mph becoming calm in the evening.

    Low: 21 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

Detailed Forecast

Today
A chance of snow before 1pm, then rain and snow. High near 43. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, possibly mixed with rain before 10pm, then a chance of snow. Low around 31. Light and variable wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday
Snow likely before 3pm, then rain likely, possibly mixed with snow showers. Some thunder is also possible. Mostly cloudy, with a high near 45. Light south southwest wind. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow, becoming all snow after 9pm. Low around 33. Light south wind. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday
Snow. High near 38. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
Snow. Low around 23. West southwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Friday
Snow likely, mainly before noon. Mostly cloudy, with a high near 35. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Friday Night
A slight chance of snow before midnight. Partly cloudy, with a low around 21. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 45.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 53.
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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:
3:43 am MDT Mar 31, 2026
Forecast Valid:
6am MDT Mar 31, 2026-6pm MDT Apr 6, 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