Vandalia Weather Forecast

    • 49
    • 72

    Partly Sunny

    • 44
    • 71

    Mostly Sunny

    • 48
    • 74

    Mostly Sunny

    • 54
    • 81

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

    • 55
    • 84

    Mostly Sunny

Today 6 Sep Montgomery

Partly cloudy in the Morning, then clearing. Highs in the lower 70s. West Winds 5 to 10 Mph.

Tonight 6 Sep Montgomery

Mostly cloudy with a 20 percent chance of Showers. Lows in the mid 50s. Northwest Winds around 5 Mph.

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Vandalia Temperature Statistics

September Temperature

Dayton, Cox Dayton International Airport (1.2 miles)

  • Lowest 1 September, 2025

    50 °F

  • Average September

    67.4 °F

  • Highest 3 September, 2025

    82.9 °F

Climate (2020–Present)

Dayton, Cox Dayton International Airport (1.2 miles)

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  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    64.7 °F
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