FPUS52 KKEY 260803 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 403 AM EDT Tue May 26 2026 FLZ076>078-262130- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 403 AM EDT Tue May 26 2026 .TODAY...Mostly sunny with a slight chance of showers and thunderstorms. Breezy. Highs in the upper 80s. Southeast winds 15 to 20 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy with a chance of showers and thunderstorms. Breezy. Lows in the lower 80s. Southeast winds 15 to 20 mph. Chance of rain 40 percent. .WEDNESDAY...Partly sunny with a chance of showers and thunderstorms. Breezy. Highs in the upper 80s. Southeast winds 15 to 20 mph. Chance of rain 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows near 80. Southeast winds 10 to 15 mph. Chance of rain 40 percent. .THURSDAY...Partly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Southeast winds near 10 mph. Chance of rain 50 percent. .THURSDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows near 80. Chance of rain 30 percent. .FRIDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows near 80. Chance of rain 40 percent. .SATURDAY THROUGH SUNDAY...Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 80s. Lows near 80. Chance of rain 50 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows near 80. Chance of rain 40 percent. .MONDAY...Showers likely with a chance of thunderstorms. Highs in the upper 80s. Chance of rain 60 percent. $$