Saint Johns River Mouth Weather Forecast

    • 60
    • 70

    Sunny

    • 58
    • 69

    Mostly Sunny

    • 60
    • 68

    Mostly Sunny

    • 66
    • 70

    Partly Sunny

    • 66
    • 71

    Mostly Cloudy

    • 66
    • 73

    Slight Chance Thunderstorms

    • 65
    • 77

    Partly Sunny

Today 25 Mar Coastal Duval

Mostly sunny. Highs in the upper 70s. North Winds 5 to 10 Mph.

Tonight 25 Mar Coastal Duval

Clear. Lows in the mid 50s. Southeast Winds 5 to 10 Mph, becoming west northwest around 5 Mph after midnight.

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Saint Johns River Mouth Temperature Statistics

March Temperature

Mayport Naval Station - Adm David L. McDonald Field (1.9 miles)

  • Lowest 22 March, 2025

    46 °F

  • Average March

    65.4 °F

  • Highest 20 March, 2025

    85.6 °F

Climate (2020–Present)

Mayport Naval Station - Adm David L. McDonald Field (1.9 miles)

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  • Average Low 2020–2025

    65.5 °F

  • Average 2020–2025

    72.3 °F

  • Average High 2020–2025

    79.7 °F
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