Saint Johns River - Mayport Naval Station Weather Forecast

    • 78
    • 85

    Chance Rain Showers

    • 77
    • 86

    Chance Thunderstorms

    • 77
    • 87

    Chance Rain Showers

    • 77
    • 88

    Slight Chance Thunderstorms

    • 77
    • 88

    Slight Chance Thunderstorms

    • 77
    • 89

    Mostly Sunny

Today 29 Aug Coastal Duval

Partly sunny. A slight chance of Showers and Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs in the upper 80s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 29 Aug Coastal Duval

Mostly cloudy. Lows in the mid 70s. Southeast Winds around 5 Mph.

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Saint Johns River - Mayport Naval Station Temperature Statistics

August Temperature

Mayport Naval Station - Adm David L. McDonald Field (0.6 miles)

  • Lowest 22 August, 2026

    73 °F

  • Average August

    82.3 °F

  • Highest 18 August, 2026

    99 °F

Climate (2021–2026)

Mayport Naval Station - Adm David L. McDonald Field (0.6 miles)

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  • Average Low 2021–2026

    65.6 °F

  • Average 2021–2026

    72.7 °F

  • Average High 2021–2026

    80.1 °F
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