Nassau Sound - Simpson Creek Entrance Weather Forecast

    • 64
    • 77

    Partly Sunny

    • 64
    • 78

    Slight Chance Thunderstorms

    • 66
    • 78

    Mostly Cloudy

    • 59
    • 76

    Rain Showers Likely

    • 59
    • 68

    Partly Sunny

    • 62
    • 71

    Mostly Sunny

Today 9 Mar Coastal Duval

Cloudy late this Morning, then becoming partly sunny. Patchy fog late this morning. Highs in the lower 80s. West Winds 5 to 10 Mph, becoming southwest 10 to 15 Mph this afternoon.

Tonight 9 Mar Coastal Duval

Partly cloudy. Lows in the mid 60s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming southwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nassau Sound - Simpson Creek Entrance Temperature Statistics

March Temperature

Mayport Naval Station - Adm David L. McDonald Field (6.2 miles)

  • Lowest 2 March, 2026

    51.1 °F

  • Average March

    62.9 °F

  • Highest 6 March, 2026

    77 °F

Climate (2021–Present)

Mayport Naval Station - Adm David L. McDonald Field (6.2 miles)

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  • Average Low 2021–2026

    65.5 °F

  • Average 2021–2026

    72.6 °F

  • Average High 2021–2026

    80 °F
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