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Porpoise Key, FL - Big Spanish Channel Marine Weather Forecast

Tonight - 69°F
Dec 27, 2025
5 to 10 mph N
Mostly Clear
Mostly clear, with a low around 69. North wind 5 to 10 mph.
Sunday - 76°F
Dec 28, 2025
5 to 10 mph NE
Mostly Sunny
Mostly sunny, with a high near 76. Northeast wind 5 to 10 mph.
Sunday Night - 71°F
Dec 28, 2025
5 mph E
Partly Cloudy
Partly cloudy, with a low around 71. East wind around 5 mph.
Monday - 76°F
Dec 29, 2025
0 to 5 mph NE
Sunny
Sunny, with a high near 76. Northeast wind 0 to 5 mph.
Monday Night - 69°F
Dec 29, 2025
5 to 10 mph N
Mostly Clear
Mostly clear, with a low around 69. North wind 5 to 10 mph.
Tuesday - 75°F
Dec 30, 2025
10 to 15 mph NW
Isolated Rain Showers
Isolated rain showers after 7am. Mostly sunny, with a high near 75. Chance of precipitation is 20%.
Tuesday Night - 59°F
Dec 30, 2025
15 to 20 mph N
Isolated Rain Showers then Partly Cloudy
Isolated rain showers before 7pm. Partly cloudy, with a low around 59. Chance of precipitation is 20%.
Wednesday - 69°F
Dec 31, 2025
15 to 20 mph N
Sunny
Sunny, with a high near 69.
Wednesday Night - 61°F
Dec 31, 2025
15 mph N
Mostly Clear
Mostly clear, with a low around 61.
New Year's Day - 70°F
Jan 01, 2026
15 mph N
Sunny
Sunny, with a high near 70.
Thursday Night - 62°F
Jan 01, 2026
15 to 20 mph N
Mostly Clear
Mostly clear, with a low around 62.
Friday - 71°F
Jan 02, 2026
15 to 20 mph N
Sunny
Sunny, with a high near 71.
Friday Night - 63°F
Jan 02, 2026
10 to 15 mph N
Mostly Clear
Mostly clear, with a low around 63.
Saturday - 73°F
Jan 03, 2026
5 to 10 mph NE
Sunny
Sunny, with a high near 73.

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