Downtown Jacksonville Weather Forecast

    • 64
    • 74

    Chance Rain Showers

    • 44
    • 72

    Mostly Sunny

    • 49
    • 68

    Mostly Sunny

    • 53
    • 71

    Mostly Sunny

    • 53
    • 65

    Partly Sunny

    • 51
    • 71

    Mostly Sunny

    • 52
    • 73

    Mostly Sunny

Today 18 Dec Coastal Duval

Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms this afternoon. Highs in the lower 70s. Southeast Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 18 Dec Coastal Duval

Mostly cloudy with a slight chance of Thunderstorms. A chance of Showers, mainly this evening. Lows in the mid 60s. South Winds 10 to 15 Mph. Chance of rain 50 percent.

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Downtown Jacksonville Temperature Statistics

December Temperature

Jacksonville Naval Air Station (6.2 miles)

  • Lowest 16 December, 2025

    39.9 °F

  • Average December

    57.2 °F

  • Highest 5 December, 2025

    79 °F

Climate (2020–Present)

Jacksonville Naval Air Station (6.2 miles)

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  • Average Low 2020–2025

    64.9 °F

  • Average 2020–2025

    72.5 °F

  • Average High 2020–2025

    81 °F
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