Arrow Lake Weather Forecast
- 49
- 72
Slight Chance Thunderstorms
- 47
- 64
Mostly Sunny
- 43
- 59
Partly Sunny
- 42
- 54
Chance Rain
- 47
- 61
Mostly Sunny
- 45
- 63
Partly Sunny
Today 27 Aug West Glacier Region
Mostly cloudy. Patchy smoke in the morning. Slight chance of rain early in the afternoon. Slight chance of Showers and Thunderstorms late in the afternoon. Chance of precipitation 20 percent. Highs in the mid 70s to lower 80s. Southwest Winds to 15 Mph in the afternoon.
Tonight 27 Aug West Glacier Region
Mostly clear. Patchy smoke in the evening. Lows in the upper 40s to mid 50s. Southwest Winds 15 to 20 Mph with Gusts to around 30 Mph.
Arrow Lake Temperature Statistics
August Temperature
Kalispell, Glacier Park International Airport (32.3 miles)
Lowest 5 August, 2026
38.6 °FAverage August
64.7 °FHighest 1 August, 2026
93.7 °F
Climate (2021–2026)
Kalispell, Glacier Park International Airport (32.3 miles)
Average Low 2021–2026
33.3 °FAverage 2021–2026
45.4 °FAverage High 2021–2026
57 °F