Mount Vernon Weather Forecast

    • 64
    • 84

    Slight Chance Thunderstorms

    • 66
    • 87

    Mostly Cloudy

    • 68
    • 86

    Chance Thunderstorms

    • 65
    • 84

    Rain Showers

    • 63
    • 83

    Chance Thunderstorms

    • 64
    • 84

    Slight Chance Thunderstorms

    • 66
    • 86

    Mostly Sunny

Today 7 Jul Knox

Partly sunny. A slight chance of Showers Early, then a chance of Showers with a slight chance of Thunderstorms. Highs in the lower 80s. North Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 7 Jul Knox

Mostly cloudy this Evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 60s. North Winds 5 to 10 Mph.

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  • Temperature Real-Time

Mount Vernon Temperature Statistics

July Temperature

Knox County Airfield (4.3 miles)

  • Lowest 5 July, 2026

    68 °F

  • Average July

    80.2 °F

  • Highest 1 July, 2026

    93.2 °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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