Riverfront Weather Forecast
- 44
- 65
Increasing Clouds
- 43
- 67
Mostly Cloudy
- 45
- 75
Mostly Sunny
- 44
- 76
Mostly Sunny
- 49
- 80
Mostly Sunny
- 48
- 81
Partly Sunny
- 47
- 76
Mostly Sunny
Today 30 Sep Missoula/Bitterroot Valleys
Mostly sunny. Highs in the mid to upper 70s.
Tonight 30 Sep Missoula/Bitterroot Valleys
Partly cloudy. Patchy fog after midnight. Lows in the lower to mid 40s.
Riverfront Temperature Statistics
September Temperature
Missoula, Missoula International Airport (5 miles)
Lowest 27 September, 2026
30.7 °FAverage September
57.8 °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