Fort Pierce Inlet State Park Weather Forecast
- 76
- 84
Thunderstorms Likely
- 76
- 84
Thunderstorms Likely
- 77
- 85
Thunderstorms Likely
- 77
- 84
Rain Showers
- 78
- 84
Rain Showers Likely
- 77
- 84
Rain Showers Likely
- 76
- 83
Chance Thunderstorms
Today 20 Sep Coastal St. Lucie
Partly sunny with a chance of Showers. A slight chance of Thunderstorms late in the Morning, then a chance of Thunderstorms late in the afternoon and towards Sunset. Highs in the mid 80s. Chance of rain 50 percent.
Tonight 20 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 mid 70s. East Winds around 5 Mph becoming south in the late evening and early Morning, then becoming light and variable late. Chance of rain 50 percent.
Fort Pierce Inlet State Park Temperature Statistics
September Temperature
Fort Pierce, St. Lucie County International Airport (4.3 miles)
Lowest 8 September, 2026
72.6 °FAverage September
82.5 °FHighest 5 September, 2026
94.6 °F
Climate (2021–2026)
Fort Pierce, St. Lucie County International Airport (4.3 miles)
Average Low 2021–2026
65.9 °FAverage 2021–2026
74.7 °FAverage High 2021–2026
83.7 °F