Bigfork Weather Forecast
- 53
- 74
Mostly Sunny
- 53
- 75
Rain Likely
- 51
- 64
Rain Showers Likely
- 50
- 71
Slight Chance Thunderstorms
- 51
- 75
Mostly Sunny
- 48
- 72
Partly Sunny
Today 13 Sep Flathead/Mission Valleys
Partly cloudy. Slight chance of rain until late Afternoon, then slight chance of Showers and Thunderstorms late in the afternoon. Patchy fog early in the morning. Chance of precipitation 20 percent. Highs in the mid 70s to lower 80s.
Tonight 13 Sep Flathead/Mission Valleys
Mostly clear. Lows in the mid 40s to lower 50s.
Bigfork Temperature Statistics
September Temperature
Kalispell, Glacier Park International Airport (18.6 miles)
Lowest 9 September, 2025
44.1 °FAverage September
68.4 °FHighest 2 September, 2025
93.2 °F
Climate (2020–Present)
Kalispell, Glacier Park International Airport (18.6 miles)
Average Low 2020–2025
33.1 °FAverage 2020–2025
45.1 °FAverage High 2020–2025
56.8 °F