St Marys Weather Forecast

    • 75
    • 92

    Slight Chance Thunderstorms

    • 75
    • 94

    Chance Thunderstorms

    • 74
    • 91

    Thunderstorms

    • 74
    • 89

    Rain Showers

    • 74
    • 89

    Thunderstorms Likely

    • 73
    • 92

    Chance Thunderstorms

Today 20 Aug Coastal Camden

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the lower 90s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 20 Aug Coastal Camden

Mostly clear. Lows in the mid 70s. Northeast Winds around 5 Mph, becoming west after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Marys Temperature Statistics

August Temperature

Fernandina Beach Municipal Airport (11.8 miles)

  • Lowest 3 August, 2025

    73.4 °F

  • Average August

    82 °F

  • Highest 1 August, 2025

    96.8 °F

Climate (2020–Present)

Fernandina Beach Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    62.3 °F

  • Average 2020–2025

    69.6 °F

  • Average High 2020–2025

    77.7 °F
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