Last Update: 421 AM EDT Sun Apr 19 2026

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Key West, FL Local Forecast Office

3NM NE Content Keys FL

Marine Zone Forecast


Today
East winds 5 to 10 knots, becoming north this afternoon. Seas 1 foot or less. Nearshore waters smooth to a light chop.
Tonight
Northwest to north winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 1 foot or less, building to 1 to 2 feet. nearshore waters smooth to a light chop, becoming a light to moderate chop.
Monday
North to northeast winds 10 to 15 knots, becoming northeast to east in the afternoon. Seas 1 to 2 feet, except building to 2 to 3 feet west of the marquesas keys. Nearshore waters a light to moderate chop. A slight chance of showers.
Monday Night
Northeast winds near 15 knots, increasing to 20 to 25 knots after midnight. Seas 1 to 2 feet, building to 2 to 4 feet, occasionally to 5 feet. West of the marquesas keys, seas 2 to 3 feet, building to except 3 to 5 feet, occasionally to 6 feet. Nearshore waters a moderate chop, becoming very rough. A slight chance of showers and thunderstorms.
Tuesday
Northeast to east winds near 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 5 to 6 feet, occasionally to 8 feet west of the marquesas keys. Nearshore waters extremely rough. A slight chance of showers.
Tuesday Night
Northeast to east winds near 25 knots, decreasing to 20 to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 5 to 6 feet, occasionally to 8 feet west of the marquesas keys. Nearshore waters extremely rough, becoming very rough.
Wednesday
East winds near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally to 6 feet west of the marquesas keys. Nearshore waters rough.
Wednesday Night
East winds near 20 knots, decreasing to 15 to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the marquesas keys. Nearshore waters rough, becoming choppy. A slight chance of showers.
Thursday
East winds near 15 knots. Seas 1 to 2 feet, except 3 to 4 feet, occasionally to 5 feet west of the marquesas keys. Nearshore waters a moderate chop. A slight chance of showers.
Thursday Night
East winds near 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the marquesas keys. Nearshore waters a moderate chop. A slight chance of showers.



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421 AM EDT Sun Apr 19 2026
 
 

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