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

38°F

3°C

Humidity 55%
Wind Speed E 7 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 02 Apr 03:45 PM MDT
Extended Forecast for

15 Miles ENE Big Sky MT

Winter Storm Warning April 2, 04:13pm until April 3, 12:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 2, 04:13pm until April 3, 12:00pm

    NOW until 12:00pm Fri

    Winter Storm Warning

  • This Afternoon

    High: 23 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Widespread blowing snow, mainly between 10pm and midnight. Low around 17. Wind chill values as low as zero. Northwest wind 18 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    Low: 17 °F

    Heavy Snow
    and Blowing
    Snow

  • Friday

    Friday: Snow, mainly before 1pm. The snow could be heavy at times. Patchy blowing snow before 9am. High near 27. Northwest wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 27 °F

    Heavy Snow
    and Patchy
    Blowing Snow
    then Snow
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly before 10pm. Partly cloudy, with a low around 17. West northwest wind 11 to 15 mph becoming southwest after midnight. Winds could gust as high as 24 mph. New snow accumulation of less than a half inch possible.

    Low: 17 °F

    Chance Snow
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 37. Southwest wind around 15 mph, with gusts as high as 24 mph.

    High: 37 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 22. South southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 22 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 41. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 41 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. South southwest wind around 8 mph.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Snow showers. The snow could be heavy at times. Some thunder is also possible. Areas of blowing snow. High near 23. West wind around 20 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 7 to 11 inches possible.
Tonight
Snow. The snow could be heavy at times. Widespread blowing snow, mainly between 10pm and midnight. Low around 17. Wind chill values as low as zero. Northwest wind 18 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Friday
Snow, mainly before 1pm. The snow could be heavy at times. Patchy blowing snow before 9am. High near 27. Northwest wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Friday Night
A 30 percent chance of snow, mainly before 10pm. Partly cloudy, with a low around 17. West northwest wind 11 to 15 mph becoming southwest after midnight. Winds could gust as high as 24 mph. New snow accumulation of less than a half inch possible.
Saturday
Sunny, with a high near 37. Southwest wind around 15 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 22. South southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 41. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 25. South southwest wind around 8 mph.
Monday
Mostly sunny, with a high near 44.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
A slight chance of rain and snow. Mostly sunny, with a high near 45.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 27.
Wednesday
A chance of snow. Partly sunny, with a high near 35.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 21.
Thursday
Snow likely. Mostly cloudy, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ENE Big Sky MT
 45.32°N 111.05°W (Elev. 8901 ft)
Last Update:
3:47 pm MDT Apr 2, 2026
Forecast Valid:
4pm MDT Apr 2, 2026-6pm MDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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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