Rare Southern U.S. Winter Storm; Dangerous Cold Weather For Much of the Eastern U.S.; Critical Fire Weather for Southern California

A rare winter storm impacting the Southern U.S. will move offshore Wednesday morning. Behind the storm, arctic air will continue encompassing the eastern two-thirds of the Nation with only a slow return to normal temperatures expected by the end of the week. Moderate to strong Santa Ana winds and low humidity will maintain Critical fire weather conditions in southern California into Thursday. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Partly Cloudy

27°F

-3°C

Humidity 53%
Wind Speed NW 16 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 21 Jan 07:05 PM MST
Extended Forecast for

Helena MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 17. West wind 11 to 20 mph, with gusts as high as 44 mph.

    Low: 17 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 29. West wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 29 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 9. South southwest wind around 6 mph.

    Low: 9 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 32. Wind chill values as low as zero. South wind around 6 mph.

    High: 32 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A 40 percent chance of snow, mainly after 11pm.  Mostly cloudy, with a low around 20. Southwest wind around 6 mph becoming calm  after midnight.  New snow accumulation of less than one inch possible.

    Low: 20 °F

    Chance Snow

  • Friday

    Friday: Snow.  High near 27. Calm wind becoming north northwest around 6 mph in the afternoon.  Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 27 °F

    Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly before 11pm.  Mostly cloudy, with a low around 9. North northwest wind around 6 mph becoming calm  in the evening.  Little or no snow accumulation expected.

    Low: 9 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 22. Calm wind becoming north around 5 mph in the afternoon.

    High: 22 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 2.

    Low: 2 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 17. West wind 11 to 20 mph, with gusts as high as 44 mph.
Wednesday
Partly sunny, with a high near 29. West wind 6 to 9 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 9. South southwest wind around 6 mph.
Thursday
Increasing clouds, with a high near 32. Wind chill values as low as zero. South wind around 6 mph.
Thursday Night
A 40 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 20. Southwest wind around 6 mph becoming calm after midnight. New snow accumulation of less than one inch possible.
Friday
Snow. High near 27. Calm wind becoming north northwest around 6 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 9. North northwest wind around 6 mph becoming calm in the evening. Little or no snow accumulation expected.
Saturday
Partly sunny, with a high near 22. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 2.
Sunday
Mostly sunny, with a high near 25.
Sunday Night
Partly cloudy, with a low around 11.
Monday
Sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Sunny, with a high near 37.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.01°W (Elev. 4111 ft)
4:09 pm MST Jan 21, 2025
7pm MST Jan 21, 2025-6pm MST Jan 28, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database