Mount Vernon Weather Forecast

    • 38
    • 65

    Rain Showers

    • 30
    • 53

    Mostly Sunny

    • 35
    • 60

    Sunny

    • 38
    • 67

    Mostly Sunny

    • 40
    • 68

    Mostly Sunny

    • 40
    • 69

    Mostly Sunny

Today 16 Oct Knox

Showers likely. Highs in the mid 60s. Temperature falling into the mid 50s. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 60 percent.

Tonight 16 Oct Knox

Mostly cloudy. Showers, mainly in the evening. Much cooler with Lows in the upper 30s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 80 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

    60.8 °F

  • Highest 13 October, 2026

    86 °F

Climate (2021–2026)

Knox County Airfield (4.3 miles)

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  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    52.2 °F

  • Average High 2021–2026

    61.7 °F
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