Riverfront Weather Forecast
- 34
- 60
Increasing Clouds
- 42
- 65
Mostly Cloudy
- 40
- 69
Mostly Sunny
- 45
- 70
Slight Chance Rain
- 41
- 66
Partly Sunny
- 41
- 67
Partly Sunny
Today 26 Sep Missoula/Bitterroot Valleys
Mostly sunny. Highs in the mid to upper 60s.
Tonight 26 Sep Missoula/Bitterroot Valleys
Mostly clear until early morning then becoming mostly cloudy. Lows in the lower to mid 30s.
Riverfront Temperature Statistics
September Temperature
Missoula, Missoula International Airport (5 miles)
Lowest 9 September, 2026
38.6 °FAverage September
59 °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