632 FPUS52 KKEY 040800 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 400 AM EDT Thu Sep 4 2025 FLZ076>078-050000- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 400 AM EDT Thu Sep 4 2025 .TODAY...Showers with a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Highs in the upper 80s. Southwest to west winds near 10 mph, increasing to 10 to 15 mph. Chance of rain 80 percent. .TONIGHT...Showers likely with a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Lows in the upper 70s. Southwest winds 10 to 15 mph. Chance of rain 60 percent. .FRIDAY...Showers with a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Highs in the upper 80s. Southwest winds near 10 mph. Chance of rain 80 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows near 80. South to southwest winds near 10 mph. Chance of rain 50 percent. .SATURDAY...Partly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 50 percent. .SATURDAY NIGHT THROUGH WEDNESDAY...Partly to mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Highs in the upper 80s. Chance of rain 50 percent. $$ JAM