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Grassy Key, FL - South Side, Hawk Channel Marine Weather Forecast

Station LONF1 - Long Key, FL

December 16, 2025 7:20 am EST
Location: 24.844N 80.864W
Wind Direction: NE (50°)
Wind Speed: 21.0 knots
Wind Gust: 24.1 knots
Atmospheric Pressure: 30.09 in (1018.9 mb)
Air Temperature: 70.7°F (21.5°C)
Dew Point: 62.6°F (17.0°C)


Today - 75°F
Dec 16, 2025
15 mph NE
Slight Chance Rain Showers
A slight chance of rain showers. Mostly sunny, with a high near 75. Northeast wind around 15 mph.
Tonight - 71°F
Dec 16, 2025
10 to 15 mph NE
Slight Chance Rain Showers then Mostly Clear
A slight chance of rain showers before 7pm. Mostly clear, with a low around 71. Northeast wind 10 to 15 mph.
Wednesday - 76°F
Dec 17, 2025
10 mph E
Sunny
Sunny, with a high near 76. East wind around 10 mph.
Wednesday Night - 72°F
Dec 17, 2025
10 mph E
Partly Cloudy
Partly cloudy, with a low around 72. East wind around 10 mph.
Thursday - 79°F
Dec 18, 2025
10 mph E
Slight Chance Rain Showers
A slight chance of rain showers after 7am. Mostly sunny, with a high near 79. East wind around 10 mph.
Thursday Night - 73°F
Dec 18, 2025
5 to 10 mph SE
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy, with a low around 73. Chance of precipitation is 20%.
Friday - 78°F
Dec 19, 2025
5 mph W
Slight Chance Rain Showers
A slight chance of rain showers. Partly sunny, with a high near 78. Chance of precipitation is 20%.
Friday Night - 71°F
Dec 19, 2025
5 to 10 mph N
Slight Chance Rain Showers
A slight chance of rain showers. Partly cloudy, with a low around 71.
Saturday - 78°F
Dec 20, 2025
10 mph NE
Slight Chance Rain Showers
A slight chance of rain showers. Sunny, with a high near 78.
Saturday Night - 74°F
Dec 20, 2025
10 mph E
Slight Chance Rain Showers
A slight chance of rain showers. Partly cloudy, with a low around 74.
Sunday - 78°F
Dec 21, 2025
10 mph E
Slight Chance Rain Showers
A slight chance of rain showers. Mostly sunny, with a high near 78.
Sunday Night - 73°F
Dec 21, 2025
10 mph NE
Slight Chance Rain Showers
A slight chance of rain showers. Partly cloudy, with a low around 73.
Monday - 78°F
Dec 22, 2025
10 to 15 mph NE
Slight Chance Rain Showers
A slight chance of rain showers. Mostly sunny, with a high near 78.
Monday Night - 72°F
Dec 22, 2025
15 mph NE
Slight Chance Rain Showers
A slight chance of rain showers. Mostly clear, with a low around 72.

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