Vandalia Weather Forecast

    • 63
    • 87

    Rain Showers

    • 49
    • 70

    Rain Showers Likely

    • 54
    • 69

    Mostly Cloudy

    • 63
    • 72

    Rain Showers

    • 62
    • 78

    Chance Thunderstorms

    • 63
    • 80

    Chance Thunderstorms

Today 19 May Montgomery

Partly cloudy. A slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 19 May Montgomery

Showers with a chance of Thunderstorms. Muggy. Lows in the lower 60s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph, becoming west 5 to 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain 90 percent.

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Vandalia Temperature Statistics

May Temperature

Dayton, Cox Dayton International Airport (1.2 miles)

  • Lowest 2 May, 2026

    34.6 °F

  • Average May

    54.9 °F

  • Highest 16 May, 2026

    73.9 °F

Climate (2021–Present)

Dayton, Cox Dayton International Airport (1.2 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    64.8 °F
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