Avalon State Park Weather Forecast

    • 80
    • 86

    Chance Thunderstorms

    • 79
    • 85

    Thunderstorms Likely

    • 79
    • 85

    Thunderstorms Likely

    • 78
    • 85

    Thunderstorms Likely

    • 77
    • 87

    Thunderstorms Likely

    • 78
    • 87

    Chance Thunderstorms

    • 78
    • 87

    Chance Thunderstorms

Today 9 Sep Coastal St. Lucie

Partly sunny with a chance of Showers and Thunderstorms. Highs in the upper 80s. East Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 101.

Tonight 9 Sep Coastal St. Lucie

Partly cloudy. A chance of Showers and Thunderstorms early in the Evening, then a slight chance of Showers and Thunderstorms in the late evening and overnight. Lows in the upper 70s. East Winds 5 to 10 Mph. Chance of rain 40 percent.

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Avalon State Park Temperature Statistics

September Temperature

Fort Pierce, St. Lucie County International Airport (4.3 miles)

  • Lowest 7 September, 2026

    73.9 °F

  • Average September

    82.5 °F

  • Highest 5 September, 2026

    94.6 °F

Climate (2021–2026)

Fort Pierce, St. Lucie County International Airport (4.3 miles)

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  • Average Low 2021–2026

    65.9 °F

  • Average 2021–2026

    74.7 °F

  • Average High 2021–2026

    83.7 °F
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