Mount Vernon Weather Forecast

    • 63
    • 84

    Becoming Sunny

    • 68
    • 85

    Rain Showers

    • 57
    • 78

    Chance Thunderstorms

    • 58
    • 77

    Partly Sunny

    • 63
    • 82

    Partly Sunny

    • 71
    • 85

    Rain Showers Likely

Today 12 Jun Jefferson

Sunny. Less humid with Highs in the lower 80s. Northwest Winds around 5 Mph.

Tonight 12 Jun Jefferson

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the upper 60s. Northwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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Mount Vernon Temperature Statistics

June Temperature

Mount Vernon Airport (2.5 miles)

  • Lowest 3 June, 2026

    48.9 °F

  • Average June

    74.8 °F

  • Highest 9 June, 2026

    93.9 °F

Climate (2021–Present)

Mount Vernon Airport (2.5 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    69.1 °F
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