Vandalia Weather Forecast

    • 61
    • 94

    Mostly Sunny

    • 63
    • 89

    Slight Chance Thunderstorms

    • 63
    • 89

    Partly Sunny

    • 63
    • 84

    Chance Thunderstorms

    • 63
    • 82

    Chance Thunderstorms

    • 59
    • 81

    Slight Chance Thunderstorms

Today 18 Sep Fayette

Sunny. Highs in the lower 90s. Southeast Winds around 5 Mph.

Tonight 18 Sep Fayette

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. East Winds 5 to 10 Mph.

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Vandalia Temperature Statistics

September Temperature

Salem, Salem-Leckrone Airport (23 miles)

  • Lowest 7 September, 2025

    44.6 °F

  • Average September

    72.1 °F

  • Highest 14 September, 2025

    101.1 °F

Climate (2020–Present)

Salem, Salem-Leckrone Airport (23 miles)

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  • Average Low 2020–2025

    49.3 °F

  • Average 2020–2025

    58.6 °F

  • Average High 2020–2025

    68.1 °F
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