Flathead Lake Weather Forecast
- 54
- 68
Rain Showers
- 52
- 54
Rain
- 51
- 60
Rain
- 51
- 63
Mostly Cloudy
- 52
- 63
Chance Rain
- 53
- 62
Rain Likely
- 48
- 57
Rain Likely
Today 11 Sep Flathead/Mission Valleys
Showers and Thunderstorms likely in the morning. Rain likely early in the Afternoon, then rain Showers likely and a chance of Thunderstorms late in the afternoon. Haze and Areas of smoke in the afternoon. Chance of precipitation 80 percent. Highs in the upper 60s to mid 70s.
Tonight 11 Sep Flathead/Mission Valleys
Rain Showers likely and a chance of Thunderstorms. Patchy fog after midnight. Chance of precipitation 90 percent. Lows in the 40s to lower 50s.
Flathead Lake Temperature Statistics
September Temperature
Kalispell, Glacier Park International Airport (30.4 miles)
Lowest 6 September, 2024
45.6 °FAverage September
67.4 °FHighest 7 September, 2024
91.7 °F
Climate (2019–Present)
Kalispell, Glacier Park International Airport (30.4 miles)
Average Low 2019–2024
33 °FAverage 2019–2024
44.7 °FAverage High 2019–2024
56.1 °F