Saint Johns River - Exchange Island Weather Forecast

    • 75
    • 95

    Thunderstorms Likely

    • 76
    • 93

    Thunderstorms Likely

    • 76
    • 92

    Thunderstorms

    • 76
    • 90

    Thunderstorms Likely

    • 76
    • 91

    Thunderstorms Likely

    • 76
    • 93

    Chance Thunderstorms

Today 30 Jul Coastal Duval

Showers and Thunderstorms likely. Highs in the mid 90s. Southwest Winds 10 to 15 Mph. Chance of rain 70 percent. Heat index Values up to 110.

Tonight 30 Jul Coastal Duval

Mostly cloudy. Showers and Thunderstorms likely in the Evening, then a slight chance of Showers after midnight. Lows in the mid 70s. Southwest Winds 10 to 15 Mph. Chance of rain 70 percent.

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Saint Johns River - Exchange Island Temperature Statistics

July Temperature

Jacksonville Craig Municipal Airport (6.2 miles)

  • Lowest 2 July, 2026

    69.7 °F

  • Average July

    85.3 °F

  • Highest 7 July, 2026

    98.7 °F

Climate (2021–2026)

Jacksonville Craig Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    62.4 °F

  • Average 2021–2026

    71.1 °F

  • Average High 2021–2026

    80.7 °F
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