Mount Vernon Weather Forecast

    • 65
    • 82

    Slight Chance Thunderstorms

    • 62
    • 84

    Rain Showers

    • 53
    • 75

    Mostly Sunny

    • 55
    • 76

    Mostly Sunny

    • 59
    • 80

    Partly Sunny

    • 60
    • 83

    Mostly Sunny

Today 20 Jul Knox

Mostly sunny. Patchy smoke. Highs in the lower 80s. East Winds around 5 Mph, becoming south around 5 Mph in the afternoon.

Tonight 20 Jul Knox

Partly cloudy in the Evening, then becoming mostly cloudy. Patchy smoke in the evening. Lows in the mid 60s. South 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 13 July, 2026

    64.4 °F

  • Average July

    77.2 °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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