NWS Key West

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Last Map Update: Wed, Feb 25, 2026 at 12:54:29 am EST

Watches, Warnings & Advisories

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National Weather Service Tampa Bay Area, FL

National Weather Service Miami - South Florida

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Frost Advisory

Special Weather Statement

Colder Conditions Continue

Island Chain

Marine Winds

Wave Heights

Cold air mass has lingered for another day, with highs today only reaching the lower 60s. Expect lows in the mid 50s tonight accompanied by light or calm winds. With clear skies and periods of calm conditions, there is potential for radiational cooling for larger islands tonight.

TONIGHT... Partly cloudy. Lows in the mid 50s. Northeast to east winds 5 to 10 mph, decreasing to near 5 mph.

SMALL CRAFT EXERCISE CAUTION: WESTERN STRAITS, until seas subside! TONIGHT... N-E gentle breezes, becoming NE-SE (~10 kts in Straits). Seas: Bay/Gulfside 1-3 ft, subsiding to 1-2 ft; west of Marquesas 3-4 ft, subsiding 2-3 ft; Hawk Channel 1-2 ft; west of Cosgrove 3-4 ft, subsiding 2-3 ft; Eastern Straits 2-4 ft, occasional 5 ft; Western Straits 4-6 ft, subsiding 3-4 ft; SE Gulf 2-4 ft, occasional 5 ft. Bay and nearshore waters smooth to a light chop.

SMALL CRAFT EXERCISE CAUTION: WESTERN STRAITS, until seas subside! TONIGHT... N-E gentle breezes, becoming NE-SE (~10 kts in Straits). Seas: Bay/Gulfside 1-3 ft, subsiding to 1-2 ft; west of Marquesas 3-4 ft, subsiding 2-3 ft; Hawk Channel 1-2 ft; west of Cosgrove 3-4 ft, subsiding 2-3 ft; Eastern Straits 2-4 ft, occasional 5 ft; Western Straits 4-6 ft, subsiding 3-4 ft; SE Gulf 2-4 ft, occasional 5 ft. Bay and nearshore waters smooth to a light chop.