Saint Johns River - Great Marsh Island Weather Forecast

    • 66
    • 82

    Increasing Clouds

    • 67
    • 84

    Partly Sunny

    • 67
    • 85

    Chance Rain Showers

    • 66
    • 79

    Rain Showers Likely

    • 65
    • 77

    Chance Rain Showers

    • 65
    • 78

    Chance Rain Showers

Today 1 May Coastal Duval

Mostly sunny. Highs in the lower 80s. Southeast Winds 10 to 15 Mph.

Tonight 1 May Coastal Duval

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 60s. Southeast Winds 10 to 15 Mph.

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Saint Johns River - Great Marsh Island Temperature Statistics

May Temperature

Mayport Naval Station - Adm David L. McDonald Field (2.5 miles)

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Climate (2020–Present)

Mayport Naval Station - Adm David L. McDonald Field (2.5 miles)

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  • Average Low 2020–2025

    65.5 °F

  • Average 2020–2025

    72.4 °F

  • Average High 2020–2025

    79.8 °F
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