Saint Johns River - Sisters Creek Entrance Weather Forecast

    • 71
    • 85

    Decreasing Clouds

    • 72
    • 85

    Mostly Sunny

    • 73
    • 85

    Mostly Sunny

    • 75
    • 84

    Chance Rain Showers

    • 75
    • 83

    Chance Thunderstorms

    • 74
    • 83

    Chance Thunderstorms

Today 17 Sep Coastal Duval

Partly cloudy. Highs in the upper 80s. Northeast Winds 5 to 10 Mph.

Tonight 17 Sep Coastal Duval

Mostly cloudy in the Evening, then clearing. Lows in the upper 60s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Johns River - Sisters Creek Entrance Temperature Statistics

September Temperature

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

  • Lowest 15 September, 2025

    70 °F

  • Average September

    78.7 °F

  • Highest 6 September, 2025

    87.1 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    65.8 °F

  • Average 2020–2025

    72.8 °F

  • Average High 2020–2025

    80.1 °F
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