Saint Johns River - Green Cove Point Weather Forecast

    • 77
    • 90

    Thunderstorms Likely

    • 77
    • 92

    Thunderstorms Likely

    • 76
    • 88

    Rain Showers

    • 77
    • 86

    Rain Showers

    • 76
    • 88

    Chance Thunderstorms

    • 76
    • 89

    Chance Thunderstorms

Today 5 Sep Eastern Clay

Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. Southwest Winds around 5 Mph. Chance of rain 50 percent. Heat index Values up to 108.

Tonight 5 Sep Eastern Clay

Mostly cloudy. Lows in the mid 70s. South Winds around 5 Mph.

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  • Temperature Real-Time

Saint Johns River - Green Cove Point Temperature Statistics

September Temperature

Jacksonville Naval Air Station (15.5 miles)

  • Lowest 1 September, 2026

    79 °F

  • Average September

    82.9 °F

  • Highest 1 September, 2026

    89.1 °F

Climate (2021–2026)

Jacksonville Naval Air Station (15.5 miles)

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  • Average Low 2021–2026

    65 °F

  • Average 2021–2026

    72.7 °F

  • Average High 2021–2026

    81.3 °F
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