Riverfront Weather Forecast
- 46
- 74
Rain Showers
- 43
- 57
Rain
- 41
- 67
Chance Rain
- 45
- 75
Mostly Sunny
- 48
- 79
Mostly Sunny
- 45
- 74
Chance Rain
Today 6 Sep Missoula/Bitterroot Valleys
Slight chance of rain early in the morning. Rain Showers likely and a chance of Thunderstorms late in the afternoon. Chance of precipitation 70 percent. Highs in the lower 70s.
Tonight 6 Sep Missoula/Bitterroot Valleys
Chance of Showers and Thunderstorms in the Evening, then rain Showers likely and a slight chance of Thunderstorms after midnight. Chance of precipitation near 100 percent. Lows in the mid to upper 40s.
Riverfront Temperature Statistics
September Temperature
Missoula, Missoula International Airport (5 miles)
Lowest 1 September, 2026
45.6 °FAverage September
59.5 °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
59.8 °F