Mount Vernon Weather Forecast

    • 75
    • 95

    Chance Thunderstorms

    • 77
    • 95

    Slight Chance Rain Showers

    • 77
    • 97

    Hot

    • 77
    • 98

    Hot

    • 75
    • 99

    Slight Chance Thunderstorms

    • 69
    • 92

    Slight Chance Thunderstorms

Today 12 Aug Posey

Mostly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 12 Aug Posey

Mostly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Lows in the mid 70s. South Winds around 5 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Vernon Temperature Statistics

August Temperature

Henderson City (13.7 miles)

  • Lowest 10 August, 2026

    79 °F

  • Average August

    85.6 °F

  • Highest 10 August, 2026

    93 °F

Climate (2021–2026)

Henderson City (13.7 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68 °F
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