Vandalia Weather Forecast

    • 59
    • 79

    Becoming Sunny

    • 60
    • 78

    Mostly Sunny

    • 63
    • 77

    Slight Chance Thunderstorms

    • 70
    • 86

    Mostly Sunny

    • 74
    • 93

    Mostly Sunny

    • 72
    • 94

    Slight Chance Thunderstorms

Today 22 Jul Fayette

Mostly sunny. Cooler with Highs in the upper 70s. North Winds 5 to 10 Mph.

Tonight 22 Jul Fayette

Partly cloudy in the Evening, then clearing. Lows in the upper 50s. Northeast Winds 5 to 10 Mph.

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Vandalia Temperature Statistics

July Temperature

Salem, Salem-Leckrone Airport (23 miles)

  • Lowest 13 July, 2026

    68.5 °F

  • Average July

    80.2 °F

  • Highest 2 July, 2026

    93.9 °F

Climate (2021–2026)

Salem, Salem-Leckrone Airport (23 miles)

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  • Average Low 2021–2026

    49.8 °F

  • Average 2021–2026

    59.1 °F

  • Average High 2021–2026

    68.7 °F
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