Riverfront Weather Forecast
- 41
- 60
Rain
- 42
- 66
Partly Sunny
- 45
- 77
Sunny
- 47
- 79
Partly Sunny
- 41
- 70
Chance Rain
- 38
- 63
Chance Rain
Today 7 Sep Missoula/Bitterroot Valleys
Rain Showers likely and a slight chance of Thunderstorms early in the Morning, then Areas of rain late in the morning. Chance of rain Showers and a slight chance of Thunderstorms in the afternoon. Chance of precipitation near 100 percent. Highs in the mid 50s to lower 60s.
Tonight 7 Sep Missoula/Bitterroot Valleys
Partly cloudy. Patchy fog after midnight. Lows in the mid 30s to lower 40s.
Riverfront Temperature Statistics
September Temperature
Missoula, Missoula International Airport (5 miles)
Lowest 1 September, 2026
45.6 °FAverage September
59.8 °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
59.8 °F