Fort Clinch Historic Site Weather Forecast

    • 77
    • 86

    Slight Chance Thunderstorms

    • 79
    • 83

    Slight Chance Thunderstorms

    • 78
    • 83

    Chance Thunderstorms

    • 76
    • 83

    Chance Thunderstorms

    • 75
    • 82

    Chance Thunderstorms

    • 73
    • 80

    Rain Showers

    • 72
    • 76

    Rain Showers

Today 30 Sep Coastal Nassau

Showers likely. A slight chance of Thunderstorms in the afternoon. Breezy with Highs in the mid 70s. Chance of rain 70 percent.

Tonight 30 Sep Coastal Nassau

Mostly clear. Lows in the mid 70s. East Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fort Clinch Historic Site Temperature Statistics

September Temperature

Fernandina Beach Municipal Airport (5.6 miles)

  • Lowest 26 September, 2026

    60.8 °F

  • Average September

    79.4 °F

  • Highest 13 September, 2026

    91.4 °F

Climate (2021–2026)

Fernandina Beach Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    62.8 °F

  • Average 2021–2026

    70.1 °F

  • Average High 2021–2026

    78.3 °F
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