Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.
A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >
Current conditions at
HELENA (HRWM8)
Lat: 46.73167°NLon: 112.01917°WElev: 3800.0ft.NA
29°F
-2°C
| Humidity | 60% |
| Wind Speed | ESE 4 MPH |
| Barometer | NA |
| Dewpoint | 17°F (-8°C) |
| Visibility | NA |
| Wind Chill | 25°F (-4°C) |
| Last update | 30 Dec 01:53 AM MST |
Extended Forecast for
17 Miles NNE East Helena MT
Overnight
Low: 26 °F
Mostly Cloudy
Tuesday
High: 41 °F
Becoming
SunnyTuesday Night
Low: 30 °F
Mostly Clear
Wednesday
High: 45 °F
Mostly Sunny
Wednesday Night
Low: 32 °F
Mostly Cloudy
New Year's Day
High: 43 °F
Mostly Cloudy
Thursday Night
Low: 35 °F
Mostly Cloudy
Friday
High: 47 °F
Mostly Cloudy
Friday Night
Low: 36 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 26. Southeast wind around 6 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 41. South southeast wind around 9 mph.
Tuesday Night
Mostly clear, with a low around 30. Southeast wind around 10 mph.
Wednesday
Mostly sunny, with a high near 45. South southeast wind around 9 mph.
Wednesday Night
Mostly cloudy, with a low around 32. South wind around 9 mph.
New Year's Day
Mostly cloudy, with a high near 43. South wind around 7 mph.
Thursday Night
Mostly cloudy, with a low around 35. South wind around 6 mph.
Friday
Mostly cloudy, with a high near 47. South wind 6 to 9 mph.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
A chance of rain before 11am, then a chance of rain and snow. Partly sunny, with a high near 47.
Saturday Night
A slight chance of rain and snow. Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 41.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
17 Miles NNE East Helena MT
46.82°N 111.81°W (Elev. 4400 ft)
46.82°N 111.81°W (Elev. 4400 ft)
1:02 am MST Dec 30, 2025
2am MST Dec 30, 2025-6pm MST Jan 5, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
