Helena Weather Forecast
- -2
- 27
Snow Showers
- 5
- 10
Chance Snow
- 4
- 18
Partly Sunny
- 21
- 25
Wintry Mix
- 10
- 31
Snow Likely
- 8
- 17
Chance Snow Showers
Today 25 Dec Northern St. Lawrence
Mostly cloudy with scattered snow Showers in the Morning, then partly sunny in the afternoon. Snow accumulation up to 1 inch possible. Highs in the upper 20s. Temperature falling to around 17 in the afternoon. West Winds around 10 Mph, becoming northwest in the afternoon. Chance of snow 50 percent.
Tonight 25 Dec Northern St. Lawrence
Partly cloudy until Midnight, then clearing. Much Colder with Lows around 2 below. North Winds around 10 Mph.
Helena Temperature Statistics
December Temperature
Massena, Massena International-Richards Field (5.6 miles)
Lowest 9 December, 2025
-14.1 °FAverage December
21.3 °FHighest 19 December, 2025
55.9 °F
Climate (2020–Present)
Massena, Massena International-Richards Field (5.6 miles)
Average Low 2020–2025
36.4 °FAverage 2020–2025
46.4 °FAverage High 2020–2025
56 °F