Fort Pierce South Weather Forecast

    • 61
    • 82

    Partly Sunny

    • 63
    • 78

    Partly Sunny

    • 64
    • 79

    Partly Sunny

    • 64
    • 77

    Partly Sunny

    • 62
    • 76

    Mostly Sunny

    • 61
    • 77

    Partly Sunny

Today 19 Dec Coastal St. Lucie

Mostly cloudy then considerable cloudiness in the morning then becoming partly sunny. Highs in the lower 80s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph becoming west 10 to 15 Mph in the Morning, then becoming northwest 5 to 10 Mph in the afternoon.

Tonight 19 Dec Coastal St. Lucie

Partly cloudy. Lows in the lower 60s. North Winds 5 to 10 Mph.

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Fort Pierce South Temperature Statistics

December Temperature

Fort Pierce, St. Lucie County International Airport (5.6 miles)

  • Lowest 12 December, 2025

    44.1 °F

  • Average December

    67.9 °F

  • Highest 5 December, 2025

    84 °F

Climate (2020–Present)

Fort Pierce, St. Lucie County International Airport (5.6 miles)

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  • Average Low 2020–2025

    65.9 °F

  • Average 2020–2025

    74.6 °F

  • Average High 2020–2025

    83.5 °F
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