Avalon State Park Weather Forecast

    • 78
    • 86

    Chance Thunderstorms

    • 77
    • 86

    Thunderstorms Likely

    • 78
    • 85

    Thunderstorms Likely

    • 77
    • 85

    Chance Thunderstorms

    • 76
    • 87

    Thunderstorms Likely

    • 76
    • 87

    Thunderstorms Likely

Today 6 Sep Coastal St. Lucie

Partly sunny. A slight chance of Showers and Thunderstorms late in the Morning, then a chance of Showers and Thunderstorms late in the afternoon and towards Sunset. Highs in the upper 80s. West Winds around 5 Mph becoming southeast 5 to 10 Mph late in the afternoon and towards Sunset. Chance of rain 30 percent. Heat index Values up to 103.

Tonight 6 Sep Coastal St. Lucie

Partly cloudy. A slight chance of Showers and Thunderstorms in the late evening and early morning. Lows in the mid 70s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

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Avalon State Park Temperature Statistics

September Temperature

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

  • Lowest 2 September, 2026

    75.7 °F

  • Average September

    82.7 °F

  • Highest 4 September, 2026

    91.9 °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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