Mount Vernon Weather Forecast

    • 66
    • 84

    Chance Rain Showers

    • 68
    • 87

    Rain Showers

    • 61
    • 83

    Chance Thunderstorms

    • 58
    • 79

    Mostly Sunny

    • 60
    • 81

    Mostly Sunny

    • 63
    • 83

    Partly Sunny

Today 26 Jul Knox

Partly sunny. Patchy fog in the morning. A slight chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the lower 80s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 26 Jul Knox

Partly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Humid with Lows in the mid 60s. West Winds around 5 Mph. Chance of rain 40 percent.

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Mount Vernon Temperature Statistics

July Temperature

Knox County Airfield (4.3 miles)

  • Lowest 23 July, 2026

    50 °F

  • Average July

    75.1 °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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