Saint Johns River - Arlington River Entrance Weather Forecast

    • 75
    • 88

    Chance Thunderstorms

    • 75
    • 88

    Rain Showers Likely

    • 71
    • 83

    Slight Chance Thunderstorms

    • 67
    • 81

    Mostly Sunny

    • 67
    • 82

    Mostly Sunny

    • 67
    • 83

    Partly Sunny

Today 22 Sep Coastal Duval

Mostly sunny. A slight chance of Showers this Morning, then a chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the mid 80s. North Winds 5 to 10 Mph, becoming east northeast 10 to 15 Mph this afternoon. Chance of rain 40 percent.

Tonight 22 Sep Coastal Duval

Partly cloudy. A slight chance of Showers after midnight. Lows in the mid 70s. Northeast Winds 5 to 10 Mph, becoming north after midnight. Chance of rain 20 percent.

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  • Temperature Real-Time

Saint Johns River - Arlington River Entrance Temperature Statistics

September Temperature

Jacksonville Craig Municipal Airport (5.6 miles)

  • Lowest 19 September, 2026

    71.7 °F

  • Average September

    82.4 °F

  • Highest 6 September, 2026

    92.6 °F

Climate (2021–2026)

Jacksonville Craig Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    62.4 °F

  • Average 2021–2026

    71.2 °F

  • Average High 2021–2026

    80.8 °F
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