Vandalia Weather Forecast

    • 64
    • 88

    Becoming Sunny

    • 62
    • 84

    Sunny

    • 66
    • 85

    Chance Thunderstorms

    • 67
    • 83

    Rain Showers Likely

    • 66
    • 79

    Rain Showers Likely

    • 66
    • 81

    Slight Chance Thunderstorms

Today 28 Jul Fayette

Partly sunny. Near steady temperature in the upper 80s. North Winds 5 to 10 Mph. Heat index Values up to 102.

Tonight 28 Jul Fayette

Partly cloudy in the Evening, then becoming mostly clear. Cooler with Lows in the lower 60s. Northeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Vandalia Temperature Statistics

July Temperature

Salem, Salem-Leckrone Airport (23 miles)

  • Lowest 24 July, 2026

    58.5 °F

  • Average July

    79 °F

  • Highest 26 July, 2026

    95.2 °F

Climate (2021–2026)

Salem, Salem-Leckrone Airport (23 miles)

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  • Average Low 2021–2026

    49.7 °F

  • Average 2021–2026

    59.1 °F

  • Average High 2021–2026

    68.7 °F
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