Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

9°F

-13°C

Humidity 64%
Wind Speed S 3 MPH
Barometer NA
Dewpoint -1°F (-18°C)
Visibility NA
Last update 28 Dec 11:45 AM MST
Extended Forecast for

13 Miles ESE Big Sky MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 10. Wind chill values as low as -10. West wind around 9 mph.

    High: 10 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 3. Wind chill values as low as -15. West wind 10 to 15 mph, with gusts as high as 21 mph.

    Low: 3 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 20. Wind chill values as low as -10. West southwest wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 20 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 13. Wind chill values as low as zero. Southwest wind 11 to 14 mph, with gusts as high as 20 mph.

    Low: 13 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 26. Southwest wind 8 to 15 mph.

    High: 26 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 17. Southwest wind 10 to 17 mph, with gusts as high as 20 mph.

    Low: 17 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 30. South southwest wind 13 to 17 mph, with gusts as high as 21 mph.

    High: 30 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19. South southwest wind 15 to 21 mph.

    Low: 19 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 10. Wind chill values as low as -10. West wind around 9 mph.
Tonight
Mostly clear, with a low around 3. Wind chill values as low as -15. West wind 10 to 15 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 20. Wind chill values as low as -10. West southwest wind 9 to 14 mph, with gusts as high as 21 mph.
Monday Night
Increasing clouds, with a low around 13. Wind chill values as low as zero. Southwest wind 11 to 14 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 26. Southwest wind 8 to 15 mph.
Tuesday Night
Partly cloudy, with a low around 17. Southwest wind 10 to 17 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 30. South southwest wind 13 to 17 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 19. South southwest wind 15 to 21 mph.
New Year's Day
Partly sunny, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 20. Breezy.
Friday
A chance of snow. Partly sunny, with a high near 27. Breezy.
Friday Night
A chance of snow. Mostly cloudy, with a low around 16.
Saturday
A chance of snow. Partly sunny, with a high near 23.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ESE Big Sky MT
 45.23°N 111.07°W (Elev. 9354 ft)
9:56 am MST Dec 28, 2025
12pm MST Dec 28, 2025-6pm MST Jan 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database