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

Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Current conditions at

HELENA (HRWM8)

Lat: 46.73167°NLon: 112.01917°WElev: 3800.0ft.

NA

30°F

-1°C

Humidity 68%
Wind Speed ENE 5 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 09 Nov 10:53 PM MST
Extended Forecast for

8 Miles N Helena MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. East southeast wind 7 to 9 mph.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 62. Southeast wind 6 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 62 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39. Southwest wind around 11 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 57. West wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32. West wind around 6 mph becoming light and variable after midnight.

    Low: 32 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 58. Calm wind becoming south around 6 mph in the afternoon.

    High: 58 °F

    Partly Sunny

  • Wednesday Night

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

    Low: 35 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 61. South wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 33. East southeast wind 7 to 9 mph.
Monday
Partly sunny, with a high near 62. Southeast wind 6 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 39. Southwest wind around 11 mph, with gusts as high as 23 mph.
Veterans Day
Mostly sunny, with a high near 57. West wind 7 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 32. West wind around 6 mph becoming light and variable after midnight.
Wednesday
Partly sunny, with a high near 58. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 35. South wind 6 to 8 mph.
Thursday
Mostly sunny, with a high near 61. South wind 6 to 13 mph, with gusts as high as 23 mph.
Thursday Night
A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 31.
Friday
A chance of rain and snow, mainly before 11am. Partly sunny, with a high near 46.
Friday Night
A slight chance of rain and snow. Partly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 27.
Sunday
A chance of rain and snow. Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles N Helena MT
 46.71°N 112.01°W (Elev. 3780 ft)
Last Update:
7:00 pm MST Nov 9, 2025
Forecast Valid:
11pm MST Nov 9, 2025-6pm MST Nov 16, 2025
 
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