Port St. Lucie, Florida Weather:
Saturday, September 5, 2026
Sunny with a Chance of Thunderstorms
Day 91°
Night 75°
Precipitation 59 %
Wind 4 mph
UV Index (0 - 11+) 10
Weather Forecast History
Last Year's Weather on This Day (September 5, 2025)
Stormy Weather

Day

90°

Night

73°

Wind

5 mph

Precipitation

87 %