Fish Lake Weather Forecast
- 50
- 78
Mostly Sunny
- 48
- 80
Mostly Sunny
- 48
- 79
Mostly Sunny
- 39
- 63
Chance Rain
- 43
- 67
Mostly Sunny
- 46
- 75
Mostly Sunny
Today 18 Sep Kootenai/Cabinet Region
Mostly sunny. Highs in the 80s.
Tonight 18 Sep Kootenai/Cabinet Region
Mostly clear. Lows in the mid 40s to lower 50s.
Fish Lake Temperature Statistics
September Temperature
Kalispell, Glacier Park International Airport (32.9 miles)
Lowest 9 September, 2025
44.1 °FAverage September
66.1 °FHighest 2 September, 2025
93.2 °F
Climate (2020–Present)
Kalispell, Glacier Park International Airport (32.9 miles)
Average Low 2020–2025
33.1 °FAverage 2020–2025
45.2 °FAverage High 2020–2025
56.8 °F