Port St Lucie Weather Forecast

    • 77
    • 90

    Mostly Sunny

    • 76
    • 90

    Partly Sunny

    • 74
    • 90

    Chance Thunderstorms

    • 73
    • 90

    Thunderstorms Likely

    • 74
    • 90

    Thunderstorms Likely

    • 74
    • 88

    Thunderstorms Likely

Today 25 May Coastal St. Lucie

Mostly sunny. Breezy. Highs in the upper 80s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 25 May Coastal St. Lucie

A slight chance of Thunderstorms in the late evening and early morning. Partly cloudy with a slight chance of Showers. Lows in the upper 70s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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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

    79 °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

    74.5 °F

  • Average High 2021–2026

    82.9 °F
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