Fort Clinch Historic Site Weather Forecast

    • 79
    • 89

    Chance Thunderstorms

    • 80
    • 88

    Mostly Sunny

    • 81
    • 89

    Slight Chance Thunderstorms

    • 79
    • 90

    Slight Chance Thunderstorms

    • 79
    • 89

    Chance Thunderstorms

    • 79
    • 89

    Chance Thunderstorms

    • 78
    • 89

    Chance Thunderstorms

Today 15 Aug Coastal Nassau

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the mid 90s. South Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 109.

Tonight 15 Aug Coastal Nassau

Partly cloudy. A slight chance of Showers and Thunderstorms this evening. Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 107 early this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fort Clinch Historic Site Temperature Statistics

August Temperature

Fernandina Beach Municipal Airport (5.6 miles)

  • Lowest 8 August, 2026

    73.4 °F

  • Average August

    80.4 °F

  • Highest 1 August, 2026

    91.4 °F

Climate (2021–2026)

Fernandina Beach Municipal Airport (5.6 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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