Saint Johns River - Little Marsh Hill Weather Forecast

    • 75
    • 94

    Thunderstorms Likely

    • 76
    • 92

    Thunderstorms Likely

    • 76
    • 91

    Rain Showers

    • 76
    • 90

    Thunderstorms Likely

    • 76
    • 91

    Thunderstorms Likely

    • 76
    • 91

    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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  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Johns River - Little Marsh Hill Temperature Statistics

July Temperature

Mayport Naval Station - Adm David L. McDonald Field (3.7 miles)

  • Lowest 14 July, 2026

    73.9 °F

  • Average July

    83.5 °F

  • Highest 7 July, 2026

    95 °F

Climate (2021–2026)

Mayport Naval Station - Adm David L. McDonald Field (3.7 miles)

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  • Average Low 2021–2026

    65.6 °F

  • Average 2021–2026

    72.7 °F

  • Average High 2021–2026

    80.1 °F
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