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

Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

38°F

3°C

Humidity 54%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 31 Dec 02:53 PM MST
Extended Forecast for

Helena MT

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 22. South wind around 5 mph becoming calm in the evening.

    Low: 22 °F

    Decreasing
    Clouds

  • New Year's Day

    New Year's Day: Increasing clouds, with a high near 41. Light southwest wind.

    High: 41 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A 20 percent chance of rain after 11pm. Cloudy, with a low around 28. Light south wind.

    Low: 28 °F

    Slight Chance
    Rain

  • Friday

    Friday: Mostly cloudy, with a high near 47. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 47 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30. South wind around 6 mph.

    Low: 30 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 48. South wind 5 to 8 mph.

    High: 48 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31. South wind around 8 mph.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 48. South wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 48 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 22. South wind around 5 mph becoming calm in the evening.
New Year's Day
Increasing clouds, with a high near 41. Light southwest wind.
Thursday Night
A 20 percent chance of rain after 11pm. Cloudy, with a low around 28. Light south wind.
Friday
Mostly cloudy, with a high near 47. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 30. South wind around 6 mph.
Saturday
Partly sunny, with a high near 48. South wind 5 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 31. South wind around 8 mph.
Sunday
Partly sunny, with a high near 48. South wind 6 to 9 mph, with gusts as high as 18 mph.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 46.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Mostly cloudy, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.61°N 111.96°W (Elev. 3796 ft)
Last Update:
1:17 pm MST Dec 31, 2025
Forecast Valid:
3pm MST Dec 31, 2025-6pm MST Jan 7, 2026
 
Forecast Discussion
 
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