Port St Lucie Weather Forecast
- 70
- 92
Mostly Sunny
- 71
- 93
Partly Sunny
- 71
- 92
Mostly Sunny
- 73
- 93
Mostly Sunny
- 73
- 94
Mostly Sunny
- 73
- 94
Partly Sunny
Today 16 May Coastal St. Lucie
Sunny late in the morning then becoming partly sunny. Highs in the upper 80s. South Winds 5 to 10 Mph becoming southeast late in the afternoon and towards Sunset.
Tonight 16 May Coastal St. Lucie
Mostly clear after midnight then becoming partly cloudy. Lows in the lower 70s. South Winds 5 to 10 Mph.
Port St Lucie Temperature Statistics
May Temperature
Witham Field Airport (9.9 miles)
Lowest 3 May, 2025
69.8 °FAverage May
76.7 °FHighest 10 May, 2025
89.6 °F
Climate (2020–Present)
Witham Field Airport (9.9 miles)
Average Low 2020–2025
69.4 °FAverage 2020–2025
74.5 °FAverage High 2020–2025
82.9 °F