Port St Lucie - River Park Weather Forecast

    • 76
    • 94

    Mostly Sunny

    • 75
    • 94

    Chance Thunderstorms

    • 75
    • 95

    Slight Chance Thunderstorms

    • 75
    • 95

    Slight Chance Thunderstorms

    • 75
    • 93

    Chance Thunderstorms

    • 75
    • 93

    Chance Thunderstorms

    • 76
    • 94

    Chance Thunderstorms

Today 10 Jul Coastal St. Lucie

Mostly sunny. A slight chance of afternoon Showers and Thunderstorms. Highs in the lower 90s. Southeast Winds 10 to 15 Mph. Chance of rain 20 percent. Heat index Values up to 107.

Tonight 10 Jul Coastal St. Lucie

Clear. Lows in the upper 70s. Southeast Winds 10 to 15 Mph becoming south 5 to 10 Mph late. Heat index Values up to 105 early.

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Port St Lucie - River Park Temperature Statistics

July Temperature

Witham Field Airport (11.8 miles)

  • Lowest 5 July, 2026

    75.2 °F

  • Average July

    81.2 °F

  • Highest 5 July, 2026

    93.2 °F

Climate (2021–2026)

Witham Field Airport (11.8 miles)

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  • Average Low 2021–2026

    69.4 °F

  • Average 2021–2026

    74.5 °F

  • Average High 2021–2026

    83 °F
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