Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

Lat: 44.5174°NLon: 108.0752°WElev: 3934.0ft.

Partly Cloudy

25°F

-4°C

Humidity 58%
Wind Speed NW 20 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 27 Dec 07:05 PM MST
Extended Forecast for

15 Miles NNE Hyattville WY

  • Tonight

    Tonight: A 50 percent chance of snow showers, mainly before 10pm.  Mostly cloudy, with a low around -4. Wind chill values as low as -20. Northwest wind 8 to 13 mph, with gusts as high as 21 mph.  Total nighttime snow accumulation of less than one inch possible.

    Low: -4 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny and cold, with a high near 8. Wind chill values as low as -20. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 8 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 5. Wind chill values as low as -5. North wind around 7 mph becoming west southwest after midnight.

    Low: 5 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 28. West southwest wind 3 to 6 mph.

    High: 28 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 18. West wind around 6 mph.

    Low: 18 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 31. West wind 3 to 5 mph.

    High: 31 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 21. West wind around 6 mph.

    Low: 21 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
A 50 percent chance of snow showers, mainly before 10pm. Mostly cloudy, with a low around -4. Wind chill values as low as -20. Northwest wind 8 to 13 mph, with gusts as high as 21 mph. Total nighttime snow accumulation of less than one inch possible.
Sunday
Sunny and cold, with a high near 8. Wind chill values as low as -20. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 5. Wind chill values as low as -5. North wind around 7 mph becoming west southwest after midnight.
Monday
Sunny, with a high near 28. West southwest wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 18. West wind around 6 mph.
Tuesday
Partly sunny, with a high near 31. West wind 3 to 5 mph.
Tuesday Night
Partly cloudy, with a low around 21. West wind around 6 mph.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Mostly clear, with a low around 25.
New Year's Day
Partly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 37.
Friday Night
A slight chance of snow showers. Mostly cloudy, with a low around 18.
Saturday
A slight chance of snow showers. Mostly cloudy, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NNE Hyattville WY
 44.45°N 107.46°W (Elev. 8691 ft)
6:02 pm MST Dec 27, 2025
7pm MST Dec 27, 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