FPUS52 KKEY 211957 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 357 PM EDT Tue Apr 21 2026 FLZ076>078-220945- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 357 PM EDT Tue Apr 21 2026 .TONIGHT...Partly cloudy and windy. Lows in the lower 70s. East winds 20 to 25 mph, decreasing to near 20 mph. .WEDNESDAY...Partly sunny. Breezy with highs around 80. East winds 15 to 20 mph. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of showers. Breezy in the evening. Lows in the lower 70s. East winds 15 to 20 mph, decreasing to near 15 mph. Chance of rain 20 percent. .THURSDAY...Mostly cloudy with a chance of showers. Highs in the lower 80s. East winds 10 to 15 mph. Chance of rain 30 percent. .THURSDAY NIGHT...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 70s. East winds 10 to 15 mph. Chance of rain 40 percent. .FRIDAY...Partly sunny in the morning, then becoming mostly sunny. A chance of showers and a slight chance of thunderstorms. Highs in the lower 80s. Chance of rain 40 percent. .FRIDAY NIGHT...Partly cloudy with a slight chance of showers. Lows in the mid 70s. Chance of rain 10 percent. .SATURDAY...Mostly sunny with a slight chance of showers. Highs in the lower 80s. Chance of rain 10 percent. .SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows in the mid 70s. Highs in the lower 80s. $$ AP/CLR