Vandalia Weather Forecast

    • 67
    • 86

    Slight Chance Thunderstorms

    • 62
    • 84

    Mostly Sunny

    • 59
    • 81

    Partly Sunny

    • 62
    • 80

    Slight Chance Thunderstorms

    • 65
    • 82

    Slight Chance Thunderstorms

    • 65
    • 85

    Slight Chance Thunderstorms

    • 66
    • 86

    Mostly Sunny

Today 21 Aug Fayette

Sunny. Near steady temperature in the lower 80s. West Winds around 5 Mph.

Tonight 21 Aug Fayette

Mostly clear this Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows in the upper 60s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Vandalia Temperature Statistics

August Temperature

Salem, Salem-Leckrone Airport (23 miles)

  • Lowest 3 August, 2026

    62.1 °F

  • Average August

    78.7 °F

  • Highest 11 August, 2026

    93.2 °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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