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Port St. Lucie, Florida Weather:
Thursday, December 18, 2025
Sunny with a Chance of Thunderstorms
Day 81°
Night 66°
Precipitation 65 %
Wind 9 mph
UV Index (0 - 11+) 4
Weather Forecast History
Last Year's Weather on This Day (December 18, 2024)
Sunny with a Chance of Thunderstorms

Day

84°

Night

64°

Wind

7 mph

UV Index

4

Precipitation

86 %