Mount Vernon Weather Forecast

    • 54
    • 72

    Rain

    • 57
    • 67

    Rain

    • 61
    • 76

    Partly Sunny

    • 53
    • 77

    Chance Rain Showers

    • 47
    • 68

    Chance Rain Showers

    • 50
    • 68

    Chance Rain Showers

Today 10 Oct Knox

Mostly cloudy. Highs in the lower 70s. East Winds 5 to 10 Mph.

Tonight 10 Oct Knox

Rain likely in the Evening, then rain with a slight chance of Thunderstorms after midnight. Lows in the mid 50s. East Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

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Mount Vernon Temperature Statistics

October Temperature

Knox County Airfield (4.3 miles)

  • Lowest 6 October, 2026

    39.2 °F

  • Average October

    59.1 °F

  • Highest 1 October, 2026

    84.2 °F

Climate (2021–2026)

Knox County Airfield (4.3 miles)

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  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    61.7 °F
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