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St. Lucie, FL Marine Weather Forecast

This Afternoon - 87°F
Sep 20, 2026
5 mph NE
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 4pm, then showers and thunderstorms likely. Partly sunny. High near 87, with temperatures falling to around 82 in the afternoon. Northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Tonight - 73°F
Sep 20, 2026
0 to 5 mph SSE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South southeast wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Monday - 87°F
Sep 21, 2026
0 to 5 mph NNE
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly sunny. High near 87, with temperatures falling to around 82 in the afternoon. North northeast wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Monday Night - 73°F
Sep 21, 2026
0 to 5 mph SSE
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers and thunderstorms likely before 11pm, then a chance of showers and thunderstorms between 11pm and 2am. Mostly cloudy, with a low around 73. South southeast wind 0 to 5 mph. Chance of precipitation is 70%.
Tuesday - 87°F
Sep 22, 2026
0 to 5 mph SSE
Showers And Thunderstorms Likely
A chance of rain showers between 8am and 11am, then showers and thunderstorms likely between 11am and 5pm, then showers and thunderstorms likely. Mostly sunny, with a high near 87. South southeast wind 0 to 5 mph. Chance of precipitation is 70%.
Tuesday Night - 73°F
Sep 22, 2026
0 to 5 mph SSE
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South southeast wind 0 to 5 mph. Chance of precipitation is 70%.
Wednesday - 87°F
Sep 23, 2026
0 to 5 mph NNW
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly sunny, with a high near 87. North northwest wind 0 to 5 mph. Chance of precipitation is 70%.
Wednesday Night - 75°F
Sep 23, 2026
0 to 5 mph SE
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 75. Southeast wind 0 to 5 mph. Chance of precipitation is 70%.
Thursday - 86°F
Sep 24, 2026
5 to 10 mph N
Chance Showers And Thunderstorms
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and thunderstorms likely. Mostly sunny, with a high near 86. North wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday Night - 75°F
Sep 24, 2026
5 to 10 mph N
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 75. North wind 5 to 10 mph. Chance of precipitation is 60%.
Friday - 86°F
Sep 25, 2026
5 to 15 mph N
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86. North wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Friday Night - 75°F
Sep 25, 2026
5 to 15 mph NNE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly cloudy, with a low around 75. North northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Saturday - 85°F
Sep 26, 2026
5 to 15 mph NNE
Chance Showers And Thunderstorms
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 85. North northeast wind 5 to 15 mph. Chance of precipitation is 50%.
Saturday Night - 74°F
Sep 26, 2026
5 to 10 mph NNE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. North northeast wind 5 to 10 mph.

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