Costich Lake Weather Forecast
- 24
- 43
Snow Likely
- 30
- 43
Rain/Snow
- 33
- 47
Rain
- 28
- 47
Snow Likely
- 24
- 47
Chance Snow
- 28
- 48
Mostly Cloudy
Today 14 Mar Kootenai/Cabinet Region
Mostly cloudy with a 50 percent chance of Areas of snow. Highs in the 40s.
Tonight 14 Mar Kootenai/Cabinet Region
Partly cloudy. A 20 percent chance of snow after midnight. Patchy fog after midnight. Lows in the 20s.
Costich Lake Temperature Statistics
March Temperature
Kalispell, Glacier Park International Airport (52.8 miles)
Lowest 7 March, 2025
17.9 °FAverage March
38.3 °FHighest 9 March, 2025
57 °F
Climate (2020–Present)
Kalispell, Glacier Park International Airport (52.8 miles)
Average Low 2020–2025
32.9 °FAverage 2020–2025
44.8 °FAverage High 2020–2025
56.4 °F