Port St Lucie Weather Forecast
- 63
- 82
Mostly Sunny
- 62
- 83
Mostly Sunny
- 65
- 84
Rain Showers Likely
- 65
- 76
Chance Thunderstorms
- 64
- 79
Slight Chance Rain Showers
- 64
- 80
Partly Sunny
Today 26 Mar Coastal St. Lucie
Partly cloudy then becoming mostly sunny late in the morning then becoming sunny. Highs in the upper 70s. East Winds 5 to 10 Mph.
Tonight 26 Mar Coastal St. Lucie
Mostly clear. Patchy fog after midnight. Lows in the upper 60s. East Winds 5 to 10 Mph.
Port St Lucie Temperature Statistics
March Temperature
Witham Field Airport (9.9 miles)
Lowest 19 March, 2026
55.4 °FAverage March
72 °FHighest 12 March, 2026
91.4 °F
Climate (2021–Present)
Witham Field Airport (9.9 miles)
Average Low 2021–2026
69.2 °FAverage 2021–2026
74.4 °FAverage High 2021–2026
82.9 °F