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

27°F

-3°C

Humidity 96%
Wind Speed NNW 0 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 31 Mar 09:15 AM MDT
Extended Forecast for

12 Miles NE 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: Snow likely before 4pm, then snow likely, possibly mixed with rain. Mostly cloudy, with a high near 44. Calm wind. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

    High: 44 °F

    Chance Snow
    then
    Rain/Snow
    Likely

  • Tonight

    Tonight: Snow likely, possibly mixed with rain before 3am, then a chance of snow after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 29. Calm wind. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 29 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Wednesday

    Wednesday: Snow likely before 3pm, then rain and snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 48. Calm wind. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 48 °F

    Chance Snow
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all snow after midnight. Low around 30. Light south wind. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain/Snow
    then Snow

  • Thursday

    Thursday: Snow. High near 42. South wind 3 to 8 mph. Winds could gust as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 42 °F

    Snow

  • Thursday Night

    Thursday Night: Snow. The snow could be heavy at times. Low around 23. West northwest wind 3 to 6 mph. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Low: 23 °F

    Heavy Snow

  • Friday

    Friday: Snow likely, mainly before noon. Mostly cloudy, with a high near 37. Northwest wind 3 to 5 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    High: 37 °F

    Snow Likely

  • Friday Night

    Friday Night: A slight chance of snow before midnight. Partly cloudy, with a low around 21. Northwest wind around 5 mph becoming calm in the evening.

    Low: 21 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

Detailed Forecast

Today
Snow likely before 4pm, then snow likely, possibly mixed with rain. Mostly cloudy, with a high near 44. Calm wind. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow likely, possibly mixed with rain before 3am, then a chance of snow after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 29. Calm wind. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Snow likely before 3pm, then rain and snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 48. Calm 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 midnight. Low around 30. Light south wind. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday
Snow. High near 42. South wind 3 to 8 mph. Winds could gust as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
Snow. The snow could be heavy at times. Low around 23. West northwest wind 3 to 6 mph. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Friday
Snow likely, mainly before noon. Mostly cloudy, with a high near 37. Northwest wind 3 to 5 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Friday Night
A slight chance of snow before midnight. Partly cloudy, with a low around 21. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 47.
Saturday Night
Mostly clear, with a low around 26.
Sunday
Mostly sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Mostly sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NE Big Sky MT
 45.39°N 111.19°W (Elev. 6998 ft)
Last Update:
3:43 am MDT Mar 31, 2026
Forecast Valid:
9am 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