Nassau Sound - Simpson Creek Entrance Weather Forecast

    • 66
    • 74

    Mostly Sunny

    • 61
    • 75

    Mostly Sunny

    • 64
    • 73

    Sunny

    • 66
    • 74

    Chance Rain Showers

    • 67
    • 73

    Rain Showers Likely

    • 65
    • 72

    Chance Rain Showers

Today 20 Oct Coastal Duval

Sunny. Highs in the mid 70s. North Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 20 Oct Coastal Duval

Clear. Lows in the upper 50s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Nassau Sound - Simpson Creek Entrance Temperature Statistics

October Temperature

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

  • Lowest 13 October, 2026

    71.1 °F

  • Average October

    79.7 °F

  • Highest 16 October, 2026

    89.1 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    65.6 °F

  • Average 2021–2026

    72.7 °F

  • Average High 2021–2026

    80 °F
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