Saint Johns River - Hart Bridge Weather Forecast

    • 77
    • 94

    Chance Thunderstorms

    • 78
    • 94

    Thunderstorms Likely

    • 77
    • 93

    Thunderstorms Likely

    • 77
    • 91

    Thunderstorms

    • 76
    • 90

    Thunderstorms

    • 77
    • 91

    Thunderstorms

Today 12 Jul Coastal Duval

Mostly sunny. A chance of Showers and Thunderstorms this afternoon. Highs in the mid 90s. West Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 108.

Tonight 12 Jul Coastal Duval

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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Saint Johns River - Hart Bridge Temperature Statistics

July Temperature

Jacksonville Naval Air Station (6.2 miles)

  • Lowest 9 July, 2025

    73.7 °F

  • Average July

    82.2 °F

  • Highest 7 July, 2025

    94.6 °F

Climate (2020–Present)

Jacksonville Naval Air Station (6.2 miles)

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  • Average Low 2020–2025

    65 °F

  • Average 2020–2025

    72.5 °F

  • Average High 2020–2025

    81 °F
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