Port St Lucie - River Park Weather Forecast

    • 49
    • 71

    Becoming Sunny

    • 57
    • 75

    Mostly Sunny

    • 62
    • 77

    Partly Sunny

    • 58
    • 78

    Slight Chance Rain Showers

    • 57
    • 72

    Partly Sunny

    • 61
    • 73

    Partly Sunny

Today 11 Dec Coastal St. Lucie

Partly cloudy early in the morning then clearing. Highs in the lower 70s. Northwest Winds 10 to 15 Mph decreasing to 5 to 10 Mph in the afternoon.

Tonight 11 Dec Coastal St. Lucie

Clear. Lows in the lower 50s. Northwest Winds around 5 Mph.

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Port St Lucie - River Park Temperature Statistics

December Temperature

Witham Field Airport (11.8 miles)

  • Lowest 4 December, 2025

    60.8 °F

  • Average December

    71.8 °F

  • Highest 5 December, 2025

    86 °F

Climate (2020–Present)

Witham Field Airport (11.8 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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