Anastasia Island Weather Forecast

    • 76
    • 90

    Chance Rain Showers

    • 76
    • 95

    Chance Thunderstorms

    • 75
    • 93

    Thunderstorms

    • 74
    • 92

    Rain Showers

    • 74
    • 92

    Rain Showers

    • 75
    • 92

    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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Anastasia Island Temperature Statistics

August Temperature

Northeast Florida Regional Airport (9.9 miles)

  • Lowest 8 August, 2025

    73.9 °F

  • Average August

    82.2 °F

  • Highest 1 August, 2025

    95 °F

Climate (2020–Present)

Northeast Florida Regional Airport (9.9 miles)

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  • Average Low 2020–2025

    63.8 °F

  • Average 2020–2025

    70.8 °F

  • Average High 2020–2025

    78.1 °F
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