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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Partly Cloudy

39°F

4°C

Humidity 79%
Wind Speed N 0 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 02 Jan 07:53 PM MST
Extended Forecast for

Helena MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. South southwest wind around 6 mph.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 47. South wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 47 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A slight chance of drizzle. Mostly cloudy, with a low around 36. South wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 36 °F

    Slight Chance
    Drizzle

  • Sunday

    Sunday: A slight chance of drizzle or freezing rain before 8am. Mostly sunny, with a high near 48. South southwest wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 10%.

    High: 48 °F

    Slight Chance
    Drizzle/Freezing
    Rain then
    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain and snow before 11pm, then a slight chance of snow. Partly cloudy, with a low around 31. South southwest wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Monday

    Monday: A 20 percent chance of snow. Mostly sunny, with a high near 42. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.

    High: 42 °F

    Slight Chance
    Snow

  • Monday Night

    Monday Night: A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 28. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 28 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 39. Southwest wind 10 to 14 mph, with gusts as high as 30 mph.

    High: 39 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 32. South southwest wind around 6 mph.
Saturday
Increasing clouds, with a high near 47. South wind 5 to 9 mph, with gusts as high as 18 mph.
Saturday Night
A slight chance of drizzle. Mostly cloudy, with a low around 36. South wind 7 to 9 mph, with gusts as high as 18 mph.
Sunday
A slight chance of drizzle or freezing rain before 8am. Mostly sunny, with a high near 48. South southwest wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 10%.
Sunday Night
A slight chance of rain and snow before 11pm, then a slight chance of snow. Partly cloudy, with a low around 31. South southwest wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Monday
A 20 percent chance of snow. Mostly sunny, with a high near 42. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 28. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 39. Southwest wind 10 to 14 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
A chance of snow, mainly before 11am. Partly sunny, with a high near 37.
Wednesday Night
A slight chance of snow. Partly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 32.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.07°W (Elev. 4764 ft)
Last Update:
3:38 pm MST Jan 2, 2026
Forecast Valid:
8pm MST Jan 2, 2026-6pm MST Jan 9, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation