Halfmoon Lake Weather Forecast
- 23
- 41
Slight Chance Snow
- 22
- 49
Mostly Sunny
- 25
- 52
Partly Sunny
- 26
- 55
Partly Sunny
- 27
- 59
Partly Sunny
- 30
- 62
Partly Sunny
Today 11 Oct West Glacier Region
Partly cloudy. Highs in the 50s.
Tonight 11 Oct West Glacier Region
Snow likely early in the Evening, then Areas of snow in the late evening and overnight. Chance of snow 80 percent. Little or no new snow accumulation. Lows in the 20s. Windy with northeast Winds 20 to 30 Mph with Gusts to around 40 Mph.
Halfmoon Lake Temperature Statistics
October Temperature
Kalispell, Glacier Park International Airport (16.2 miles)
Lowest 8 October, 2026
32 °FAverage October
51.5 °FHighest 5 October, 2026
74.6 °F
Climate (2021–2026)
Kalispell, Glacier Park International Airport (16.2 miles)
Average Low 2021–2026
33.4 °FAverage 2021–2026
45.4 °FAverage High 2021–2026
57 °F