Avalon State Park Weather Forecast

    • 78
    • 85

    Chance Thunderstorms

    • 77
    • 85

    Chance Thunderstorms

    • 79
    • 85

    Chance Thunderstorms

    • 78
    • 85

    Rain Showers

    • 77
    • 85

    Rain Showers

    • 77
    • 86

    Thunderstorms Likely

    • 76
    • 86

    Thunderstorms Likely

Today 12 Sep Coastal St. Lucie

Considerable cloudiness with Showers likely and a chance of Thunderstorms. 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 St. Lucie

Considerable cloudiness early in the evening then becoming partly cloudy. A chance of Showers and Thunderstorms early in the evening. Lows in the mid 70s. South Winds 5 to 10 Mph becoming west around 5 Mph late. 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 8 September, 2026

    72.6 °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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