South Fork St Lucie River - Palm City Weather Forecast

    • 75
    • 90

    Thunderstorms Likely

    • 75
    • 90

    Thunderstorms Likely

    • 77
    • 91

    Thunderstorms Likely

    • 77
    • 88

    Thunderstorms Likely

    • 77
    • 87

    Thunderstorms Likely

    • 76
    • 87

    Thunderstorms Likely

Today 12 Sep Coastal Martin

Partly cloudy. A chance of Showers and Thunderstorms late in the Morning, then Showers and Thunderstorms likely late in the afternoon and towards Sunset. Highs in the upper 80s. Southeast Winds 5 to 10 Mph. Chance of rain 60 percent. Heat index Values up to 103.

Tonight 12 Sep Coastal Martin

Partly cloudy with a slight chance of Thunderstorms. A slight chance of Showers in the late evening and early Morning, then a chance of Showers after midnight. Lows in the upper 70s. Southeast Winds around 5 Mph in the late evening and early morning becoming light and variable. Chance of rain 50 percent.

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South Fork St Lucie River - Palm City Temperature Statistics

September Temperature

Witham Field Airport (2.5 miles)

  • Lowest 7 September, 2026

    73.4 °F

  • Average September

    80.9 °F

  • Highest 5 September, 2026

    93.2 °F

Climate (2021–2026)

Witham Field Airport (2.5 miles)

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  • Average Low 2021–2026

    69.4 °F

  • Average 2021–2026

    74.6 °F

  • Average High 2021–2026

    83.1 °F
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