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Porpoise Key, FL - Big Spanish Channel Marine Weather Forecast

Overnight - 83°F
Jul 25, 2026
10 mph SE
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 83. Southeast wind around 10 mph. Chance of precipitation is 30%.
Saturday - 90°F
Jul 25, 2026
5 to 10 mph NE
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday Night - 83°F
Jul 25, 2026
5 mph SW
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 83. Southwest wind around 5 mph. Chance of precipitation is 30%.
Sunday - 90°F
Jul 26, 2026
5 to 10 mph W
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. West wind 5 to 10 mph. Chance of precipitation is 40%.
Sunday Night - 82°F
Jul 26, 2026
10 mph NW
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 82. Northwest wind around 10 mph. Chance of precipitation is 60%.
Monday - 90°F
Jul 27, 2026
10 mph W
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers and thunderstorms likely before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Monday Night - 83°F
Jul 27, 2026
10 mph W
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 83. Chance of precipitation is 60%.
Tuesday - 90°F
Jul 28, 2026
10 to 15 mph SW
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Tuesday Night - 82°F
Jul 28, 2026
10 to 15 mph SW
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 82. Chance of precipitation is 60%.
Wednesday - 92°F
Jul 29, 2026
10 to 15 mph SW
Slight Chance Showers And Thunderstorms then Mostly Sunny
A slight chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 92. Chance of precipitation is 20%.
Wednesday Night - 83°F
Jul 29, 2026
5 to 10 mph SW
Partly Cloudy
Partly cloudy, with a low around 83.
Thursday - 92°F
Jul 30, 2026
5 to 10 mph SW
Mostly Sunny
Mostly sunny, with a high near 92.
Thursday Night - 83°F
Jul 30, 2026
5 mph SW
Partly Cloudy
Partly cloudy, with a low around 83.
Friday - 92°F
Jul 31, 2026
5 mph S
Mostly Sunny
Mostly sunny, with a high near 92.

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