Saint Johns River - Great Marsh Island Weather Forecast

    • 56
    • 65

    Dense Fog

    • 53
    • 75

    Partly Sunny

    • 59
    • 73

    Partly Sunny

    • 58
    • 79

    Mostly Sunny

    • 59
    • 77

    Mostly Sunny

    • 59
    • 76

    Mostly Sunny

Today 3 Feb Coastal Duval

Mostly cloudy this Morning, then becoming mostly sunny. Widespread dense fog this morning. Patchy dense fog this afternoon. Highs in the lower 70s. Northeast Winds 5 to 10 Mph.

Tonight 3 Feb Coastal Duval

Partly cloudy in the Evening, then becoming mostly cloudy. Widespread dense fog. Lows in the mid 50s. East Winds 5 to 10 Mph, becoming southwest after midnight.

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Saint Johns River - Great Marsh Island Temperature Statistics

February 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

    72.3 °F

  • Average High 2020–2025

    79.6 °F
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