Bearmouth Weather Forecast
- 33
- 68
Becoming Sunny
- 38
- 77
Mostly Sunny
- 40
- 83
Chance Rain
- 33
- 69
Chance Rain
- 32
- 65
Rain Likely
- 30
- 58
Chance Rain
- 32
- 68
Mostly Sunny
Today 8 Sep Butte/Blackfoot Region
Mostly sunny in the Morning, then mostly cloudy with a 20 percent chance of rain early in the afternoon. Partly cloudy late in the afternoon. Patchy fog early in the morning. Highs in the mid 50s to lower 60s. West Winds to 15 Mph in the afternoon.
Tonight 8 Sep Butte/Blackfoot Region
Mostly clear. Areas of fog late in the night. Lows in the 30s. Northwest Winds to 15 Mph in the evening.
Bearmouth Temperature Statistics
September Temperature
Missoula, Missoula International Airport (38.5 miles)
Lowest 1 September, 2026
45.6 °FAverage September
60.1 °FHighest 1 September, 2026
88.6 °F
Climate (2021–2026)
Missoula, Missoula International Airport (38.5 miles)
Average Low 2021–2026
36 °FAverage 2021–2026
47.6 °FAverage High 2021–2026
59.8 °F