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.

Clear

30°F

-1°C

Humidity 92%
Wind Speed SSW 3 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 03 Jan 08:05 AM MST
Extended Forecast for

3 Miles W Helena MT

  • Today

    Today: Mostly sunny, with a high near 46. West wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 18 mph.

    High: 46 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 34. South wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 34 °F

    Chance Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 49. South southwest wind around 11 mph, with gusts as high as 24 mph.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 29. South southwest wind 6 to 8 mph.

    Low: 29 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Monday

    Monday: A slight chance of rain and snow after 11am. Partly sunny, with a high near 43. West southwest wind 5 to 8 mph. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Rain/Snow

  • Monday Night

    Monday Night: A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 27. West southwest wind 6 to 8 mph, with gusts as high as 18 mph.

    Low: 27 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 41. West southwest wind 9 to 16 mph, with gusts as high as 32 mph.

    High: 41 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30. South southwest wind around 13 mph, with gusts as high as 28 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow. Partly sunny, with a high near 38.

    High: 38 °F

    Chance Snow

Detailed Forecast

Today
Mostly sunny, with a high near 46. West wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Tonight
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 34. South wind 7 to 9 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 49. South southwest wind around 11 mph, with gusts as high as 24 mph.
Sunday Night
A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 29. South southwest wind 6 to 8 mph.
Monday
A slight chance of rain and snow after 11am. Partly sunny, with a high near 43. West southwest wind 5 to 8 mph. Chance of precipitation is 20%.
Monday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 27. West southwest wind 6 to 8 mph, with gusts as high as 18 mph.
Tuesday
Partly sunny, with a high near 41. West southwest wind 9 to 16 mph, with gusts as high as 32 mph.
Tuesday Night
Mostly cloudy, with a low around 30. South southwest wind around 13 mph, with gusts as high as 28 mph.
Wednesday
A chance of snow. Partly sunny, with a high near 38.
Wednesday Night
A slight chance of snow. Partly cloudy, with a low around 22.
Thursday
A slight chance of snow. Partly sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Helena MT
 46.6°N 112.11°W (Elev. 4039 ft)
Last Update:
8:02 am MST Jan 3, 2026
Forecast Valid:
8am MST Jan 3, 2026-6pm MST Jan 9, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation