Riverfront Weather Forecast
- 49
- 76
Mostly Sunny
- 52
- 83
Mostly Sunny
- 44
- 80
Rain Likely
- 40
- 60
Partly Sunny
- 42
- 63
Mostly Cloudy
- 41
- 62
Partly Sunny
Today 23 Sep Missoula/Bitterroot Valleys
Mostly sunny. Highs in the mid 70s.
Tonight 23 Sep Missoula/Bitterroot Valleys
Partly cloudy. Lows in the mid to upper 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