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

50°F

10°C

Humidity 41%
Wind Speed S 13 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 22 Apr 12:00 PM MDT
Extended Forecast for

6 Miles ESE Big Sky MT

Winter Storm Warning April 22, 06:00pm until April 23, 06:00pm
Click here for hazard details and duration
Winter Storm Warning

  • This Afternoon

    This Afternoon: A chance of snow showers before 3pm, then snow showers, possibly mixed with rain. Some thunder is also possible. High near 47. South wind 17 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 47 °F

    Rain/Snow

  • Tonight

    Tonight: Snow. Low around 28. Southwest wind 5 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 28 °F

    Snow

  • Thursday

    Thursday: Snow before noon, then snow showers, mainly after noon. Some thunder is also possible. High near 33. Light west southwest wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 33 °F

    Snow

  • Thursday Night

    Thursday Night: Snow, mainly before midnight. Low around 18. Northwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 18 °F

    Snow then
    Chance Snow

  • Friday

    Friday: Snow. High near 31. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 31 °F

    Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow before midnight. Partly cloudy, with a low around 12. North northwest wind around 6 mph becoming calm in the evening. New snow accumulation of less than a half inch possible.

    Low: 12 °F

    Chance Snow
    then Partly
    Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow. Partly sunny, with a high near 38. Calm wind becoming west around 5 mph in the afternoon. Little or no snow accumulation expected.

    High: 38 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A slight chance of snow after midnight. Mostly cloudy, with a low around 18. North northwest wind around 5 mph becoming calm in the evening.

    Low: 18 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A chance of snow. Mostly cloudy, with a high near 38.

    High: 38 °F

    Chance Snow

Detailed Forecast

This Afternoon
A chance of snow showers before 3pm, then snow showers, possibly mixed with rain. Some thunder is also possible. High near 47. South wind 17 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tonight
Snow. Low around 28. Southwest wind 5 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Thursday
Snow before noon, then snow showers, mainly after noon. Some thunder is also possible. High near 33. Light west southwest wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
Snow, mainly before midnight. Low around 18. Northwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Friday
Snow. High near 31. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Friday Night
A 30 percent chance of snow before midnight. Partly cloudy, with a low around 12. North northwest wind around 6 mph becoming calm in the evening. New snow accumulation of less than a half inch possible.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 38. Calm wind becoming west around 5 mph in the afternoon. Little or no snow accumulation expected.
Saturday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around 18. North northwest wind around 5 mph becoming calm in the evening.
Sunday
A chance of snow. Mostly cloudy, with a high near 38.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 22.
Monday
Snow likely. Mostly cloudy, with a high near 42.
Monday Night
A slight chance of snow. Partly cloudy, with a low around 26.
Tuesday
A chance of snow. Partly sunny, with a high near 46.
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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:
11:41 am MDT Apr 22, 2026
Forecast Valid:
12pm MDT Apr 22, 2026-6pm MDT Apr 28, 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