Saint Johns River - Green Cove Point Weather Forecast

    • 77
    • 90

    Thunderstorms Likely

    • 77
    • 91

    Chance Thunderstorms

    • 78
    • 91

    Thunderstorms Likely

    • 78
    • 88

    Rain Showers Likely

    • 76
    • 85

    Chance Thunderstorms

    • 75
    • 85

    Chance Thunderstorms

Today 12 Sep Eastern Clay

Mostly sunny. Showers and Thunderstorms likely this afternoon. Highs in the lower 90s. South Winds 5 to 10 Mph. Chance of rain 70 percent. Heat index Values up to 105.

Tonight 12 Sep Eastern Clay

Mostly cloudy with Showers and Thunderstorms likely in the Evening, then partly cloudy after midnight. Lows in the mid 70s. South Winds 5 to 10 Mph, becoming southwest after midnight. Chance of rain 70 percent.

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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 6 September, 2026

    73.9 °F

  • Average September

    81.8 °F

  • Highest 6 September, 2026

    91.9 °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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