Vandalia Weather Forecast

    • 74
    • 88

    Chance Thunderstorms

    • 74
    • 92

    Chance Thunderstorms

    • 75
    • 93

    Partly Sunny

    • 76
    • 95

    Mostly Sunny

    • 72
    • 94

    Slight Chance Thunderstorms

    • 66
    • 86

    Slight Chance Rain Showers

Today 12 Aug Fayette

Mostly cloudy with scattered Showers and Thunderstorms. Near steady temperature in the upper 80s. Southwest Winds around 5 Mph. Chance of rain 50 percent. Heat index Values up to 100.

Tonight 12 Aug Fayette

Mostly cloudy in the Evening, then becoming partly cloudy. Scattered Showers and Thunderstorms. Humid with Lows in the lower 70s. Southeast Winds around 5 Mph. Chance of rain 40 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

    77 °F

  • Highest 10 August, 2026

    91.4 °F

Climate (2021–2026)

Salem, Salem-Leckrone Airport (23 miles)

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  • Average Low 2021–2026

    49.8 °F

  • Average 2021–2026

    59.1 °F

  • Average High 2021–2026

    68.7 °F
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