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 >

Hazardous Weather Conditions

Small Craft Advisory until January 29, 04:00 AM CST

Last Update: 429 PM EST Wed Jan 28 2026

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For More Weather Information:

Key West, FL Local Forecast Office

23NM N Smith Shoal Light FL

Marine Zone Forecast

Tonight

North winds near 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave detail: north 5 feet at 6 seconds.

Thursday

North to northeast winds near 20 knots, decreasing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: north 5 feet at 6 seconds.

Thursday Night

Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: north 3 feet at 5 seconds. Isolated showers.

Friday

North to northeast winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers.

Friday Night

Northwest to north winds 10 to 15 knots, becoming west to northwest. Seas 2 to 3 feet. Scattered showers.

Saturday

Southwest to west winds near 20 knots, becoming northwest 25 to 30 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet, building to 7 to 10 feet, occasionally to 13 feet. Numerous showers.

Saturday Night

Northwest winds 30 to 35 knots, becoming 25 to 30 knots after midnight. Seas 11 to 15 feet, occasionally to 19 feet. Isolated showers.

Sunday

Northwest to north winds near 30 knots, decreasing to 25 to 30 knots. Seas 10 to 14 feet, occasionally to 18 feet, subsiding to 9 to 11 feet, occasionally to 14 feet. Isolated showers.

Sunday Night

Northwest to north winds near 25 knots, decreasing to 15 to 20 knots. Seas 7 to 10 feet, occasionally to 13 feet, subsiding to 5 to 8 feet, occasionally to 10 feet.

Monday

North winds 15 to 20 knots, decreasing to near 15 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 4 to 5 feet, occasionally to 6 feet.

Monday Night

North to northeast winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet, subsiding to 2 to 4 feet.