Riverfront Weather Forecast

    • 43
    • 69

    Clearing Late

    • 43
    • 75

    Mostly Sunny

    • 48
    • 81

    Rain Showers

    • 48
    • 73

    Chance Rain Showers

    • 47
    • 74

    Mostly Sunny

    • 46
    • 78

    Mostly Sunny

    • 47
    • 79

    Mostly Sunny

Today 15 Sep Missoula/Bitterroot Valleys

Mostly cloudy. Areas of fog and patchy frost early in the morning. Highs in the mid to upper 60s.

Tonight 15 Sep Missoula/Bitterroot Valleys

Mostly cloudy until early morning then becoming partly cloudy. Patchy fog late in the night. Lows in the lower to mid 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverfront Temperature Statistics

September Temperature

Missoula, Missoula International Airport (5 miles)

  • Lowest 9 September, 2026

    38.6 °F

  • Average September

    59.5 °F

  • Highest 1 September, 2026

    88.6 °F

Climate (2021–2026)

Missoula, Missoula International Airport (5 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    59.7 °F
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