St Marys Weather Forecast

    • 74
    • 88

    Chance Thunderstorms

    • 74
    • 86

    Partly Sunny

    • 74
    • 84

    Rain Showers Likely

    • 74
    • 86

    Chance Thunderstorms

    • 74
    • 86

    Chance Thunderstorms

    • 73
    • 86

    Chance Thunderstorms

Today 15 Sep Coastal Camden

Mostly sunny with a slight chance of Thunderstorms. A slight chance of Showers in the Morning, then Showers likely in the afternoon. Highs in the upper 80s. Northeast Winds 15 to 20 Mph. Gusts up to 35 Mph in the afternoon. Chance of rain 70 percent.

Tonight 15 Sep Coastal Camden

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 70s. Northeast Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Marys Temperature Statistics

September Temperature

Fernandina Beach Municipal Airport (11.8 miles)

  • Lowest 12 September, 2026

    71.6 °F

  • Average September

    81.2 °F

  • Highest 5 September, 2026

    89.6 °F

Climate (2021–2026)

Fernandina Beach Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    62.7 °F

  • Average 2021–2026

    70.1 °F

  • Average High 2021–2026

    78.3 °F
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