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 >

Current conditions at

Big Timber Airport (K6S0)

Lat: 45.80647°NLon: 109.97826°WElev: 4494.0ft.

Clear

12°F

-11°C

Humidity 51%
Wind Speed W 32 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-10°F (-23°C)
Last update 28 Dec 04:15 AM MST
Extended Forecast for

5 Miles SSW Harlowton MT

  • Today

    Today: Sunny, with a high near 28. Wind chill values as low as -20. West northwest wind 14 to 21 mph.

    High: 28 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 21. West wind 18 to 20 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 40. West wind around 21 mph, with gusts as high as 38 mph.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. West wind 17 to 20 mph.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46. West wind 15 to 18 mph.

    High: 46 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a steady temperature around 36. West wind 14 to 21 mph.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 52. West wind 17 to 21 mph.

    High: 52 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32. West wind around 13 mph.

    Low: 32 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 51. West wind 10 to 14 mph.

    High: 51 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 28. Wind chill values as low as -20. West northwest wind 14 to 21 mph.
Tonight
Partly cloudy, with a low around 21. West wind 18 to 20 mph.
Monday
Sunny, with a high near 40. West wind around 21 mph, with gusts as high as 38 mph.
Monday Night
Mostly cloudy, with a low around 30. West wind 17 to 20 mph.
Tuesday
Partly sunny, with a high near 46. West wind 15 to 18 mph.
Tuesday Night
Partly cloudy, with a steady temperature around 36. West wind 14 to 21 mph.
Wednesday
Mostly sunny, with a high near 52. West wind 17 to 21 mph.
Wednesday Night
Partly cloudy, with a low around 32. West wind around 13 mph.
New Year's Day
Mostly cloudy, with a high near 51. West wind 10 to 14 mph.
Thursday Night
Mostly cloudy, with a low around 33. West wind 10 to 14 mph.
Friday
Mostly cloudy, with a high near 49. West wind 14 to 16 mph.
Friday Night
Mostly cloudy, with a low around 26. West wind 14 to 17 mph.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 41. West wind 16 to 18 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Harlowton MT
 46.38°N 109.88°W (Elev. 4488 ft)
4:10 am MST Dec 28, 2025
4am 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