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 Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California 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

23°F

-5°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 31 Dec 08:00 AM MST
Extended Forecast for

Helena MT

  • Today

    Today: Partly sunny, with a high near 42. Calm wind becoming south around 5 mph in the afternoon.

    High: 42 °F

    Partly Sunny

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 25. South wind around 5 mph becoming calm in the evening.

    Low: 25 °F

    Decreasing
    Clouds

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 42. Calm wind.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30. Light south southwest wind.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 47. Calm wind becoming south around 5 mph in the afternoon.

    High: 47 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32. South wind around 6 mph.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 49. South wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 49 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31. South wind around 9 mph.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 42. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 25. South wind around 5 mph becoming calm in the evening.
New Year's Day
Partly sunny, with a high near 42. Calm wind.
Thursday Night
Mostly cloudy, with a low around 30. Light south southwest wind.
Friday
Mostly cloudy, with a high near 47. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 32. South wind around 6 mph.
Saturday
Partly sunny, with a high near 49. South wind 6 to 9 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 31. South wind around 9 mph.
Sunday
Partly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 44.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 42.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.59°N 111.98°W (Elev. 3996 ft)
Last Update:
4:12 am MST Dec 31, 2025
Forecast Valid:
8am MST Dec 31, 2025-6pm MST Jan 6, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation