Saint Johns River - Sisters Creek Entrance Weather Forecast

    • 79
    • 89

    Thunderstorms Likely

    • 75
    • 89

    Chance Thunderstorms

    • 75
    • 90

    Thunderstorms Likely

    • 75
    • 90

    Thunderstorms Likely

    • 76
    • 89

    Rain Showers Likely

    • 76
    • 88

    Chance Thunderstorms

Today 25 Aug Coastal Duval

Partly sunny. Showers and Thunderstorms likely this afternoon. Some Thunderstorms may produce gusty Winds and heavy rainfall this afternoon. Highs in the lower 90s. Southwest Winds around 5 Mph, becoming south with Gusts up to 20 Mph this afternoon. Chance of rain 70 percent.

Tonight 25 Aug Coastal Duval

Mostly cloudy. Showers and Thunderstorms Likely, mainly in the evening. Some Thunderstorms may produce gusty Winds and heavy rainfall in the evening. Lows in the mid 70s. South Winds 10 to 15 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Johns River - Sisters Creek Entrance Temperature Statistics

August Temperature

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