Vandalia Weather Forecast

    • 61
    • 88

    Becoming Sunny

    • 62
    • 88

    Mostly Sunny

    • 71
    • 94

    Mostly Sunny

    • 69
    • 97

    Chance Thunderstorms

    • 61
    • 86

    Slight Chance Rain Showers

    • 62
    • 86

    Partly Sunny

Today 6 Sep Fayette

Sunny. Not as warm with Highs in the upper 80s. Northeast Winds 5 to 10 Mph.

Tonight 6 Sep Fayette

Mostly clear. Lows in the lower 60s. Northeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Vandalia Temperature Statistics

September Temperature

Salem, Salem-Leckrone Airport (23 miles)

  • Lowest 1 September, 2026

    74.8 °F

  • Average September

    87.6 °F

  • Highest 2 September, 2026

    100.4 °F

Climate (2021–2026)

Salem, Salem-Leckrone Airport (23 miles)

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  • Average Low 2021–2026

    49.8 °F

  • Average 2021–2026

    59.2 °F

  • Average High 2021–2026

    68.7 °F
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