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Saint Marks, FL Marine Weather Forecast

This Afternoon - 88°F
Sep 20, 2026
0 to 5 mph SSE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny. High near 88, with temperatures falling to around 85 in the afternoon. South southeast wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Tonight - 75°F
Sep 20, 2026
0 to 5 mph NE
Chance Showers And Thunderstorms then Mostly Cloudy
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 75. Northeast wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Monday - 88°F
Sep 21, 2026
0 to 5 mph ESE
Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Sunny, with a high near 88. East southeast wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Monday Night - 75°F
Sep 21, 2026
0 to 5 mph ESE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. East southeast wind 0 to 5 mph. Chance of precipitation is 30%.
Tuesday - 88°F
Sep 22, 2026
0 to 5 mph ESE
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 88. East southeast wind 0 to 5 mph. Chance of precipitation is 20%.
Tuesday Night - 75°F
Sep 22, 2026
0 to 5 mph ESE
Slight Chance Showers And Thunderstorms then Mostly Clear
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75. Chance of precipitation is 20%.
Wednesday - 88°F
Sep 23, 2026
0 to 5 mph E
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 88. Chance of precipitation is 20%.
Wednesday Night - 75°F
Sep 23, 2026
0 to 10 mph NE
Slight Chance Showers And Thunderstorms then Mostly Clear
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75. Chance of precipitation is 20%.
Thursday - 87°F
Sep 24, 2026
5 to 15 mph NE
Sunny
Sunny, with a high near 87.
Thursday Night - 72°F
Sep 24, 2026
5 to 10 mph NE
Mostly Clear
Mostly clear, with a low around 72.
Friday - 85°F
Sep 25, 2026
5 to 10 mph NE
Sunny
Sunny, with a high near 85.
Friday Night - 71°F
Sep 25, 2026
5 to 10 mph NE
Partly Cloudy
Partly cloudy, with a low around 71.
Saturday - 84°F
Sep 26, 2026
5 to 10 mph ENE
Sunny
Sunny, with a high near 84.
Saturday Night - 70°F
Sep 26, 2026
5 to 10 mph NE
Partly Cloudy
Partly cloudy, with a low around 70.

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