Mill Cove - New Castle Island Weather Forecast

    • 78
    • 93

    Chance Rain Showers

    • 78
    • 95

    Partly Sunny

    • 78
    • 94

    Partly Sunny

    • 78
    • 94

    Partly Sunny

    • 78
    • 95

    Chance Thunderstorms

    • 77
    • 91

    Chance Thunderstorms

    • 79
    • 94

    Chance Thunderstorms

Today 21 Jul Coastal Duval

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the mid 90s. South Winds 15 to 20 Mph. Chance of rain 20 percent. Heat index Values up to 107.

Tonight 21 Jul Coastal Duval

Partly cloudy. A chance of Showers and Thunderstorms this evening. Lows in the upper 70s. South Winds 15 to 20 Mph, Diminishing to 5 to 10 Mph after midnight. Chance of rain 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mill Cove - New Castle Island Temperature Statistics

July Temperature

Jacksonville Craig Municipal Airport (5 miles)

  • Lowest 2 July, 2026

    69.7 °F

  • Average July

    84.7 °F

  • Highest 7 July, 2026

    98.7 °F

Climate (2021–2026)

Jacksonville Craig Municipal Airport (5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    62.4 °F

  • Average 2021–2026

    71.1 °F

  • Average High 2021–2026

    80.6 °F
Get WillyWeather+ to remove ads