Mount Vernon Weather Forecast

    • 64
    • 84

    Rain Showers

    • 71
    • 87

    Slight Chance Thunderstorms

    • 65
    • 88

    Chance Thunderstorms

    • 51
    • 79

    Rain Showers Likely

    • 49
    • 70

    Partly Sunny

    • 55
    • 73

    Chance Rain Showers

Today 18 May Jefferson

Showers and a chance of Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs in the lower 80s. Southwest Winds around 10 Mph. Chance of precipitation 80 percent.

Tonight 18 May Jefferson

Partly cloudy with a 50 percent chance of Showers and Thunderstorms. Lows in the lower 60s. West Winds around 5 Mph in the evening becoming calm after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Vernon Temperature Statistics

May Temperature

Mount Vernon Airport (2.5 miles)

  • Lowest 2 May, 2022

    46.9 °F
  • Average May

    66.5 °F
  • Highest 11 May, 2022

    91 °F

Climate (2010–Present)

Mount Vernon Airport (2.5 miles)

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  • Average Low 2010–Present

    44.4 °F
  • Average 2010–Present

    54.2 °F
  • Average High 2010–Present

    65.2 °F
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