Costich Lake Weather Forecast
- 26
- 39
Chance Snow
- 23
- 38
Rain/Snow
- 9
- 33
Snow Likely
- 7
- 30
Slight Chance Snow
- 14
- 29
Mostly Cloudy
- 21
- 32
Chance Snow
Today 26 Nov Kootenai/Cabinet Region
Mostly cloudy. Areas of fog in the morning. Patchy fog early in the afternoon. A 40 percent chance of Areas of snow early in the morning. Highs in the mid 30s to lower 40s.
Tonight 26 Nov Kootenai/Cabinet Region
Mostly cloudy. Areas of fog through the night. A 20 percent chance of snow after midnight. Lows in the mid 20s to lower 30s.
Costich Lake Temperature Statistics
November Temperature
Kalispell, Glacier Park International Airport (52.8 miles)
Lowest 10 November, 2025
23 °FAverage November
40.2 °FHighest 11 November, 2025
54 °F
Climate (2020–Present)
Kalispell, Glacier Park International Airport (52.8 miles)
Average Low 2020–2025
33.3 °FAverage 2020–2025
45.3 °FAverage High 2020–2025
57 °F