Fort Pierce Inlet Weather Forecast

    • 78
    • 86

    Chance Thunderstorms

    • 77
    • 86

    Thunderstorms Likely

    • 79
    • 86

    Chance Thunderstorms

    • 80
    • 85

    Rain Showers Likely

    • 79
    • 84

    Thunderstorms Likely

    • 79
    • 84

    Thunderstorms Likely

Today 12 Sep Coastal St. Lucie

Partly sunny late in the morning then considerable cloudiness. A chance of Showers and Thunderstorms. Highs in the upper 80s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 102.

Tonight 12 Sep Coastal St. Lucie

Partly cloudy. A slight chance of Showers and Thunderstorms 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 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fort Pierce Inlet Temperature Statistics

September Temperature

Fort Pierce, St. Lucie County International Airport (5.6 miles)

  • Lowest 8 September, 2026

    72.6 °F

  • Average September

    82.6 °F

  • Highest 5 September, 2026

    94.6 °F

Climate (2021–2026)

Fort Pierce, St. Lucie County International Airport (5.6 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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