Port St Lucie Weather Forecast

    • 70
    • 86

    Mostly Sunny

    • 72
    • 87

    Slight Chance Thunderstorms

    • 72
    • 87

    Chance Thunderstorms

    • 73
    • 84

    Chance Thunderstorms

    • 74
    • 84

    Chance Thunderstorms

    • 73
    • 84

    Chance Thunderstorms

Today 14 May Coastal St. Lucie

Mostly sunny. Highs in the lower 80s. Northwest Winds 5 to 10 Mph becoming northeast late in the afternoon and towards Sunset.

Tonight 14 May Coastal St. Lucie

Partly cloudy. Lows in the mid 70s. Southeast Winds around 5 Mph becoming north after midnight.

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Port St Lucie Temperature Statistics

May Temperature

Witham Field Airport (9.9 miles)

  • Lowest 7 May, 2026

    68 °F

  • Average May

    77.9 °F

  • Highest 2 May, 2026

    95 °F

Climate (2021–Present)

Witham Field Airport (9.9 miles)

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  • Average Low 2021–2026

    69.3 °F

  • Average 2021–2026

    74.4 °F

  • Average High 2021–2026

    82.9 °F
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