Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Last Update: 429 PM EST Wed Jan 28 2026

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Key West, FL Local Forecast Office

3NM NE Content Keys FL

Marine Zone Forecast


Tonight
Northwest to north winds near 20 knots, becoming north to northeast after midnight. Seas 3 to 5 feet, occasionally to 6 feet, except 4 to 6 feet, occasionally to 8 feet west of the marquesas keys. Nearshore waters rough. Isolated showers.
Thursday
North to northeast winds near 20 knots, decreasing to 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. West of the marquesas keys, seas 5 to 6 feet, occasionally to 8 feet, subsiding to 4 to 5 feet, occasionally to 6 feet. Nearshore waters rough, becoming choppy.
Thursday Night
Northeast winds 15 to 20 knots. Seas 2 to 3 feet. Nearshore waters choppy. Scattered showers.
Friday
North to northeast winds 15 to 20 knots. Seas 2 to 3 feet. Nearshore waters choppy. Scattered showers.
Friday Night
North winds near 15 knots, becoming northwest to north 10 to 15 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. Isolated showers.
Saturday
West winds 15 to 20 knots, becoming northwest 25 to 30 knots in the afternoon. Seas 1 to 2 feet, building to 3 to 5 feet, occasionally to 6 feet. West of the marquesas keys, seas 2 to 3 feet, building to 6 to 7 feet, occasionally to 9 feet. nearshore waters choppy, becoming extremely rough. Scattered showers.
Saturday Night
Northwest winds 30 to 35 knots, decreasing to near 30 knots. Seas 5 to 7 feet, occasionally to 9 feet, except 9 to 12 feet, occasionally to 15 feet west of the marquesas keys. nearshore waters extremely rough. Isolated showers.
Sunday
Northwest to north winds 25 to 30 knots, decreasing to near 25 knots. Seas 5 to 7 feet, occasionally to 9 feet, except 9 to 12 feet, occasionally to 15 feet west of the marquesas keys. nearshore waters extremely rough.
Sunday Night
Northwest to north winds 20 to 25 knots, becoming north 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. west of the marquesas keys, seas 8 to 10 feet, occasionally to 13 feet, subsiding to 6 to 8 feet, occasionally to 10 feet. nearshore waters very rough, becoming choppy.
Monday
North winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 6 feet, occasionally to 8 feet west of the marquesas keys. Nearshore waters choppy, becoming a moderate chop.
Monday Night
North to northeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. west of the marquesas keys, seas 4 to 5 feet, occasionally to 6 feet, subsiding to 3 to 4 feet, occasionally to 5 feet. Nearshore waters a light to moderate chop.



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429 PM EST Wed Jan 28 2026
 
 

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