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Summerland Key, FL - Niles Channel South Marine Weather Forecast

This Afternoon - 79°F
Dec 18, 2025
10 mph SE
Partly Sunny
Partly sunny, with a high near 79. Southeast wind around 10 mph.
Tonight - 74°F
Dec 18, 2025
5 to 10 mph S
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 7pm and 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 74. South wind 5 to 10 mph. Chance of precipitation is 20%.
Friday - 80°F
Dec 19, 2025
5 mph W
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Partly sunny, with a high near 80. West wind around 5 mph. Chance of precipitation is 20%.
Friday Night - 70°F
Dec 19, 2025
5 to 10 mph N
Slight Chance Rain Showers then Mostly Cloudy
A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 70. North wind 5 to 10 mph.
Saturday - 78°F
Dec 20, 2025
5 to 10 mph NE
Mostly Sunny
Mostly sunny, with a high near 78. Northeast wind 5 to 10 mph.
Saturday Night - 71°F
Dec 20, 2025
5 to 10 mph E
Partly Cloudy
Partly cloudy, with a low around 71.
Sunday - 78°F
Dec 21, 2025
10 mph NE
Mostly Sunny
Mostly sunny, with a high near 78.
Sunday Night - 71°F
Dec 21, 2025
10 to 15 mph NE
Partly Cloudy
Partly cloudy, with a low around 71.
Monday - 79°F
Dec 22, 2025
15 mph NE
Mostly Sunny
Mostly sunny, with a high near 79.
Monday Night - 72°F
Dec 22, 2025
15 to 20 mph NE
Partly Cloudy
Partly cloudy, with a low around 72.
Tuesday - 78°F
Dec 23, 2025
15 to 20 mph E
Slight Chance Rain Showers
A slight chance of rain showers after 7am. Mostly sunny, with a high near 78.
Tuesday Night - 71°F
Dec 23, 2025
15 mph NE
Slight Chance Rain Showers then Partly Cloudy
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 71.
Wednesday - 78°F
Dec 24, 2025
15 mph NE
Sunny
Sunny, with a high near 78.
Wednesday Night - 71°F
Dec 24, 2025
15 mph NE
Mostly Clear
Mostly clear, with a low around 71.

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