Mount Vernon Weather Forecast

    • 42
    • 68

    Patchy Fog

    • 45
    • 72

    Increasing Clouds

    • 47
    • 69

    Partly Sunny

    • 48
    • 71

    Partly Sunny

    • 52
    • 74

    Mostly Sunny

    • 52
    • 75

    Partly Sunny

    • 56
    • 72

    Chance Rain Showers

Today 25 Oct Knox

Mostly cloudy. A chance of Showers in the Morning, then Showers likely in the afternoon. Highs in the upper 60s. Chance of rain 70 percent.

Tonight 25 Oct Knox

Partly cloudy this Evening, then becoming mostly clear. Patchy fog after midnight. Lows in the lower 40s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Vernon Temperature Statistics

October Temperature

Knox County Airfield (4.3 miles)

  • Lowest 18 October, 2026

    32 °F

  • Average October

    57.9 °F

  • Highest 13 October, 2026

    86 °F

Climate (2021–2026)

Knox County Airfield (4.3 miles)

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  • Average Low 2021–2026

    43.3 °F

  • Average 2021–2026

    52.2 °F

  • Average High 2021–2026

    61.7 °F
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