FPUS52 KKEY 200804 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 404 AM EDT Wed Aug 20 2025 FLZ076>078-202215- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 404 AM EDT Wed Aug 20 2025 .TODAY...Mostly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the lower 90s. Variable winds near 5 mph early, becoming west to northwest and increasing to 5 to 10 mph. Chance of rain 30 percent. .TONIGHT...Mostly clear with a chance of showers and a slight chance of thunderstorms. Lows in the lower 80s. West winds 5 to 10 mph, becoming southwest to west. Chance of rain 30 percent. .THURSDAY...Mostly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the lower 90s. Southwest to west winds 5 to 10 mph. Chance of rain 30 percent. .THURSDAY NIGHT...Mostly clear with a chance of showers and a slight chance of thunderstorms. Lows in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 30 percent. .FRIDAY...Mostly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the lower 90s. Southwest winds near 5 mph. Chance of rain 30 percent. .FRIDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 20 percent. .SATURDAY...Mostly sunny with a chance of showers and a slight chance of thunderstorms. Highs near 90. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 20 percent. .SUNDAY THROUGH TUESDAY...Mostly clear with a slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the lower 80s. Chance of rain 20 percent. $$ DP