Nassau River - Mesa Marsh Weather Forecast

    • 76
    • 84

    Chance Rain Showers

    • 77
    • 86

    Chance Thunderstorms

    • 77
    • 88

    Slight Chance Thunderstorms

    • 78
    • 86

    Chance Thunderstorms

    • 78
    • 87

    Chance Thunderstorms

    • 79
    • 88

    Chance Thunderstorms

    • 79
    • 89

    Slight Chance Thunderstorms

Today 21 Jun Coastal Nassau

Showers and Thunderstorms likely. Highs around 90. West Winds around 5 Mph. Chance of rain 70 percent.

Tonight 21 Jun Coastal Nassau

Mostly cloudy with a chance of Showers and Thunderstorms this Evening, then partly cloudy after midnight. Lows in the mid 70s. Southwest Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nassau River - Mesa Marsh Temperature Statistics

June Temperature

Fernandina Beach Municipal Airport (5 miles)

  • Lowest 5 June, 2026

    64.4 °F

  • Average June

    79.1 °F

  • Highest 15 June, 2026

    95 °F

Climate (2021–2026)

Fernandina Beach Municipal Airport (5 miles)

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  • Average Low 2021–2026

    62.7 °F

  • Average 2021–2026

    70.1 °F

  • Average High 2021–2026

    78.2 °F
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