Vandalia Weather Forecast

    • 66
    • 89

    Decreasing Clouds

    • 62
    • 89

    Slight Chance Thunderstorms

    • 66
    • 86

    Mostly Sunny

    • 69
    • 93

    Slight Chance Rain Showers

    • 69
    • 92

    Chance Rain Showers

    • 65
    • 87

    Chance Rain Showers

Today 12 Sep Fayette

Mostly sunny. Highs in the upper 80s. West Winds around 5 Mph.

Tonight 12 Sep Fayette

Partly cloudy. Lows in the mid 60s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Vandalia Temperature Statistics

September Temperature

Salem, Salem-Leckrone Airport (23 miles)

  • Lowest 8 September, 2026

    57.6 °F

  • Average September

    83.6 °F

  • Highest 5 September, 2026

    102.4 °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

    68.8 °F
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