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

6 Miles ESE Big Sky MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 18. Southwest wind around 7 mph.

    High: 18 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 4. Wind chill values as low as -5. South wind around 6 mph.

    Low: 4 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 28. Wind chill values as low as -5. South southwest wind around 7 mph.

    High: 28 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 16. South southwest wind around 6 mph.

    Low: 16 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 21. South southwest wind 3 to 5 mph.

    Low: 21 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. South southwest wind 3 to 7 mph.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24. South wind around 6 mph.

    Low: 24 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 18. Southwest wind around 7 mph.
Tonight
Mostly clear, with a low around 4. Wind chill values as low as -5. South wind around 6 mph.
Monday
Mostly sunny, with a high near 28. Wind chill values as low as -5. South southwest wind around 7 mph.
Monday Night
Increasing clouds, with a low around 16. South southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 36. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 21. South southwest wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 40. South southwest wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 24. South wind around 6 mph.
New Year's Day
Partly sunny, with a high near 40.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
A chance of snow. Partly sunny, with a high near 37.
Friday Night
A chance of snow. Mostly cloudy, with a low around 20.
Saturday
A chance of snow. Partly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Big Sky MT
 45.24°N 111.22°W (Elev. 7129 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

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database