Riverfront Weather Forecast
- 41
- 70
Mostly Sunny
- 48
- 71
Partly Sunny
- 42
- 68
Partly Sunny
- 46
- 72
Partly Sunny
- 44
- 73
Partly Sunny
- 43
- 73
Mostly Sunny
- 46
- 75
Partly Sunny
Today 28 Sep Missoula/Bitterroot Valleys
Mostly sunny. Highs in the mid to upper 70s.
Tonight 28 Sep Missoula/Bitterroot Valleys
Mostly clear. Lows in the mid 30s to lower 40s.
Riverfront Temperature Statistics
September Temperature
Missoula, Missoula International Airport (5 miles)
Lowest 9 September, 2026
38.6 °FAverage September
58.6 °FHighest 1 September, 2026
88.6 °F
Climate (2021–2026)
Missoula, Missoula International Airport (5 miles)
Average Low 2021–2026
36 °FAverage 2021–2026
47.6 °FAverage High 2021–2026
59.7 °F