Riverfront Weather Forecast
- 41
- 80
Chance Rain
- 36
- 60
Mostly Cloudy
- 41
- 65
Mostly Cloudy
- 40
- 68
Partly Sunny
- 43
- 65
Partly Sunny
- 42
- 66
Partly Sunny
Today 25 Sep Missoula/Bitterroot Valleys
Mostly cloudy with a 30 percent chance of rain. Highs near 60.
Tonight 25 Sep Missoula/Bitterroot Valleys
Mostly cloudy early in the evening then becoming partly cloudy. A 40 percent chance of Areas of rain. Lows in the mid 30s to lower 40s. Windy with southwest Winds 20 to 30 Mph. Gusts up to 40 Mph decreasing to 30 Mph after midnight.
Riverfront Temperature Statistics
September Temperature
Missoula, Missoula International Airport (5 miles)
Lowest 9 September, 2026
38.6 °FAverage September
58.9 °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