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PNS25-72: Soliciting Comments through December 19, 2025 on the Discontinuation of the Max/Min Temperature and Precipitation Table Product (RTP) for all NWS Alaska Region, Eastern Region, and Western Region Offices.

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Hazardous Weather Conditions

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

Lat: 45.34534°NLon: 111.17261°WElev: 5699.0ft.

unknown precip

32°F

0°C

Humidity 92%
Wind Speed SE 8 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 05 Dec 10:00 PM MST
Extended Forecast for

15 Miles ENE Big Sky MT

Winter Storm Warning December 5, 10:19pm until December 6, 02:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning December 5, 10:19pm until December 6, 02:00pm

    NOW until 2:00pm Sat

    Winter Storm Warning

  • Tonight

    Low: 19 °F

    Snow and
    Areas Blowing
    Snow

  • Saturday

    Saturday: Snow. Patchy blowing snow before 10am. High near 21. Breezy, with a west wind 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 21 °F

    Snow and
    Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 15. Wind chill values as low as zero. West southwest wind 18 to 21 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of snow. Partly sunny, with a high near 21. Wind chill values as low as zero. Southwest wind 14 to 20 mph, with gusts as high as 28 mph.

    High: 21 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 19. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 32 mph. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Chance Snow
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 26. Southwest wind 16 to 18 mph, with gusts as high as 28 mph.

    High: 26 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of snow, mainly after 11pm. Cloudy, with a low around 24. Windy, with a south southwest wind 21 to 30 mph, with gusts as high as 45 mph. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    and Windy

  • Tuesday

    Tuesday: Snow likely. Mostly cloudy, with a high near 31. Breezy, with a west wind 23 to 29 mph, with gusts as high as 46 mph.

    High: 31 °F

    Snow Likely
    and Breezy

Detailed Forecast

Tonight
Snow, mainly before 1am. Areas of blowing snow. Low around 19. Breezy, with a west wind 23 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.
Saturday
Snow. Patchy blowing snow before 10am. High near 21. Breezy, with a west wind 16 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 15. Wind chill values as low as zero. West southwest wind 18 to 21 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 21. Wind chill values as low as zero. Southwest wind 14 to 20 mph, with gusts as high as 28 mph.
Sunday Night
A 40 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 19. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 32 mph. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 26. Southwest wind 16 to 18 mph, with gusts as high as 28 mph.
Monday Night
A 40 percent chance of snow, mainly after 11pm. Cloudy, with a low around 24. Windy, with a south southwest wind 21 to 30 mph, with gusts as high as 45 mph. New snow accumulation of less than a half inch possible.
Tuesday
Snow likely. Mostly cloudy, with a high near 31. Breezy, with a west wind 23 to 29 mph, with gusts as high as 46 mph.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 25. Breezy.
Wednesday
Snow likely. Mostly cloudy, with a high near 30.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 24. Breezy.
Thursday
A chance of snow. Mostly cloudy, with a high near 27. Breezy.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 21.
Friday
A chance of snow. Mostly cloudy, with a high near 28.
Basemap Options
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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:
9:32 pm MST Dec 5, 2025
Forecast Valid:
10pm MST Dec 5, 2025-6pm MST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation