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 Northeast; Heavy Rain Returns to California

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on New Year's Eve into New Year's Day. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

32°F

0°C

Humidity 63%
Wind Speed SW 9 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 30 Dec 05:53 PM MST
Extended Forecast for

Helena MT

  • Tonight

    Tonight: Mostly clear, with a low around 27. West southwest wind 3 to 6 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 44. Light and variable wind.

    High: 44 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 29. South southwest wind 3 to 5 mph.

    Low: 29 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 43. Calm wind.

    High: 43 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. South southwest wind 3 to 5 mph.

    Low: 31 °F

    Mostly Cloudy

  • Friday

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

    High: 47 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35. South wind 6 to 8 mph.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain after 11am. Partly sunny, with a high near 49. South wind 7 to 9 mph, with gusts as high as 21 mph.

    High: 49 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A slight chance of rain and snow before 11pm. Partly cloudy, with a low around 31.

    Low: 31 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 27. West southwest wind 3 to 6 mph.
Wednesday
Increasing clouds, with a high near 44. Light and variable wind.
Wednesday Night
Mostly cloudy, with a low around 29. South southwest wind 3 to 5 mph.
New Year's Day
Partly sunny, with a high near 43. Calm wind.
Thursday Night
Mostly cloudy, with a low around 31. South southwest wind 3 to 5 mph.
Friday
Partly sunny, with a high near 47. South southwest wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 35. South wind 6 to 8 mph.
Saturday
A slight chance of rain after 11am. Partly sunny, with a high near 49. South wind 7 to 9 mph, with gusts as high as 21 mph.
Saturday Night
A slight chance of rain and snow before 11pm. Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 44.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 42.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.04°W (Elev. 4413 ft)
Last Update:
3:48 pm MST Dec 30, 2025
Forecast Valid:
6pm MST Dec 30, 2025-6pm MST Jan 6, 2026
 
Forecast Discussion
 
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