Nassau River - Back River Weather Forecast

    • 72
    • 87

    Mostly Cloudy

    • 75
    • 89

    Mostly Cloudy

    • 75
    • 85

    Mostly Cloudy

    • 75
    • 87

    Slight Chance Thunderstorms

    • 75
    • 87

    Slight Chance Thunderstorms

    • 75
    • 88

    Chance Thunderstorms

Today 7 Jun Coastal Duval

Partly cloudy. Highs in the upper 80s. South Winds around 5 Mph, becoming east and increasing to 10 to 15 Mph this afternoon.

Tonight 7 Jun Coastal Duval

Mostly cloudy. Lows in the lower 70s. Southeast Winds 10 to 15 Mph, becoming south around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nassau River - Back River Temperature Statistics

June Temperature

Fernandina Beach Municipal Airport (4.3 miles)

  • Lowest 5 June, 2026

    64.4 °F

  • Average June

    77 °F

  • Highest 2 June, 2026

    87.8 °F

Climate (2021–Present)

Fernandina Beach Municipal Airport (4.3 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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