NWS Key West

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Last Map Update: Tue, Jun 2, 2026 at 12:08:24 pm EDT

Watches, Warnings & Advisories

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National Weather Service Tampa Bay Area, FL

National Weather Service Miami - South Florida

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Short Term Forecast

Rain & Thunder Chances Increasing

Island Chain

Marine Winds

Wave Heights

Record May Heat

Rain Chances Trending Upwards, Peaking Wednesday Night and Thursday. Chance for showers and thunderstorms today, showers likely with a chance for thunderstorms Wednesday and Thursday.

Today... Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. West to northwest winds near 5 mph, becoming southwest to west. Chance of rain 20 percent.

Today... Variable light breezes (~5 kts). Seas: Bay/Gulfside ≤1 ft; Hawk Channel ≤1 ft; FL Straits ~1 ft; SE Gulf ~1 ft. Bay/nearshore waters smooth. Slight chance of showers & thunderstorms (Chance for Florida Bay).

Today... Variable light breezes (~5 kts). Seas: Bay/Gulfside ≤1 ft; Hawk Channel ≤1 ft; FL Straits ~1 ft; SE Gulf ~1 ft. Bay/nearshore waters smooth. Slight chance of showers & thunderstorms (Chance for Florida Bay).

May 2026 heat enters the record books for Key West, ranking as the warmest May (ties 2024) and the warmest Spring (previously 2024) on record. May averaged 84.7°F (3.6 degrees above the 30-yr average/normal) Spring [March-April-May] averaged 80.5°F (2.7 degrees above the 30-yr average/normal) Temperature records date back to July 1872 for Key West and June 1950 for Marathon (however, Marathon did not rank in the top 10 for warmest May or Spring.)

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