Fort Matanzas National Monument Weather Forecast

    • 78
    • 86

    Chance Rain Showers

    • 78
    • 90

    Chance Thunderstorms

    • 77
    • 87

    Thunderstorms

    • 76
    • 87

    Rain Showers

    • 77
    • 87

    Rain Showers

    • 77
    • 87

    Chance Thunderstorms

Today 20 Aug Southeast Coastal St. Johns

Mostly sunny with a chance of Showers and Thunderstorms. Highs around 90. North Winds 15 to 20 Mph. Chance of rain 50 percent.

Tonight 20 Aug Southeast Coastal St. Johns

Partly cloudy with a 20 percent chance of Showers. Lows in the upper 70s. North Winds 10 to 15 Mph.

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Fort Matanzas National Monument Temperature Statistics

August Temperature

Flagler County Airport (16.8 miles)

  • Lowest 5 August, 2025

    71.6 °F

  • Average August

    78.9 °F

  • Highest 1 August, 2025

    93.2 °F

Climate (2020–Present)

Flagler County Airport (16.8 miles)

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  • Average Low 2020–2025

    61.2 °F

  • Average 2020–2025

    67.7 °F

  • Average High 2020–2025

    79.3 °F
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