Mount Vernon Weather Forecast

    • 64
    • 79

    Chance Rain Showers

    • 58
    • 76

    Chance Thunderstorms

    • 50
    • 74

    Mostly Sunny

    • 50
    • 75

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

Today 26 May Knox

Partly sunny in the Morning, then becoming mostly cloudy. Highs in the upper 70s. Northeast Winds around 5 Mph.

Tonight 26 May Knox

Mostly cloudy. Near steady temperature in the mid 50s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Vernon Temperature Statistics

May Temperature

Knox County Airfield (4.3 miles)

  • Lowest 2 May, 2026

    32 °F

  • Average May

    56.6 °F

  • Highest 18 May, 2026

    86 °F

Climate (2021–Present)

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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