Jupiter Island Weather Forecast

    • 65
    • 78

    Chance Thunderstorms

    • 63
    • 70

    Breezy

    • 66
    • 72

    Partly Sunny

    • 68
    • 76

    Mostly Cloudy

    • 69
    • 79

    Slight Chance Rain Showers

    • 71
    • 79

    Partly Sunny

Today 14 Dec Coastal Martin

Mostly cloudy early in the morning then becoming partly cloudy. A chance of Showers. Highs in the upper 70s. West Winds 5 to 10 Mph becoming north 10 to 15 Mph in the afternoon. Chance of rain 50 percent.

Tonight 14 Dec Coastal Martin

Partly cloudy. A slight chance of Showers and Thunderstorms after midnight. Windy. Lows in the lower 60s. North Winds 15 to 20 Mph increasing to 20 to 25 Mph after midnight. Chance of rain 20 percent.

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Jupiter Island Temperature Statistics

December Temperature

Witham Field Airport (12.4 miles)

  • Lowest 12 December, 2025

    51.8 °F

  • Average December

    69.6 °F

  • Highest 5 December, 2025

    86 °F

Climate (2020–Present)

Witham Field Airport (12.4 miles)

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  • Average Low 2020–2025

    69.3 °F

  • Average 2020–2025

    74.5 °F

  • Average High 2020–2025

    82.9 °F
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