National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Partly Cloudy

0°F

-18°C

Humidity 77%
Wind Speed N 0 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Last update 28 Dec 04:05 AM MST
Extended Forecast for

Helena MT

  • Today

    Today: Sunny, with a high near 23. Wind chill values as low as -10. West wind 5 to 7 mph.

    High: 23 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 13. South wind around 7 mph.

    Low: 13 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 35. South wind 5 to 7 mph becoming west in the afternoon.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 24. Southwest wind around 6 mph.

    Low: 24 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 41. Light southwest wind.

    High: 41 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. South southwest wind around 6 mph.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 47. South southwest wind 3 to 6 mph.

    High: 47 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 29. South southwest wind around 6 mph.

    Low: 29 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 23. Wind chill values as low as -10. West wind 5 to 7 mph.
Tonight
Increasing clouds, with a low around 13. South wind around 7 mph.
Monday
Mostly sunny, with a high near 35. South wind 5 to 7 mph becoming west in the afternoon.
Monday Night
Increasing clouds, with a low around 24. Southwest wind around 6 mph.
Tuesday
Partly sunny, with a high near 41. Light southwest wind.
Tuesday Night
Mostly cloudy, with a low around 28. South southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 47. South southwest wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 29. South southwest wind around 6 mph.
New Year's Day
Partly sunny, with a high near 46.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
A slight chance of rain and snow. Partly sunny, with a high near 46.
Friday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 26.
Saturday
A slight chance of snow. Partly sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.01°W (Elev. 4111 ft)
Last Update:
3:27 am MST Dec 28, 2025
Forecast Valid:
4am MST Dec 28, 2025-6pm MST Jan 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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Chance of Precipitation