Mount Vernon Weather Forecast

    • 53
    • 77

    Mostly Sunny

    • 48
    • 71

    Mostly Sunny

    • 52
    • 75

    Partly Sunny

    • 51
    • 76

    Mostly Sunny

    • 52
    • 74

    Sunny

    • 53
    • 75

    Mostly Sunny

Today 29 May Knox

Patchy fog this morning. Sunny. Highs in the mid 70s. East Winds around 5 Mph, becoming west this afternoon.

Tonight 29 May Knox

Mostly clear. Lows in the lower 50s. Northwest Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • 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

    58.1 °F

  • Highest 18 May, 2026

    86 °F

Climate (2021–Present)

Knox County Airfield (4.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    61.7 °F
Get WillyWeather+ to remove ads