Port St Lucie Weather Forecast

    • 56
    • 79

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

    • 57
    • 81

    Mostly Sunny

    • 46
    • 72

    Partly Sunny

Today 25 Dec Coastal St. Lucie

Patchy fog early in the morning. Mostly clear. Highs in the upper 70s. Northwest Winds 5 to 10 Mph becoming north in the afternoon.

Tonight 25 Dec Coastal St. Lucie

Clear. Patchy fog after midnight. Lows around 60. Northwest Winds around 5 Mph.

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Port St Lucie Temperature Statistics

December Temperature

Witham Field Airport (9.9 miles)

  • Lowest 12 December, 2025

    51.8 °F

  • Average December

    70.4 °F

  • Highest 5 December, 2025

    86 °F

Climate (2020–Present)

Witham Field Airport (9.9 miles)

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  • Average Low 2020–2025

    69.4 °F

  • Average 2020–2025

    74.5 °F

  • Average High 2020–2025

    83 °F
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