FPUS52 KKEY 042042 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 442 PM EDT Tue Aug 4 2026 FLZ076>078-051130- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 442 PM EDT Tue Aug 4 2026 .TONIGHT...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 80s. East winds 5 to 10 mph, increasing to near 10 mph. Chance of rain 40 percent. .WEDNESDAY...Showers likely with a chance of thunderstorms. Highs near 90. East winds near 10 mph. Chance of rain 60 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. East winds 10 to 15 mph. Chance of rain 50 percent. .THURSDAY...Partly sunny with a chance of showers and thunderstorms. Highs near 90. East winds 10 to 15 mph. Chance of rain 50 percent. .THURSDAY NIGHT...Showers likely with a chance of thunderstorms. Lows in the lower 80s. East winds 10 to 15 mph. Chance of rain 60 percent. .FRIDAY...Partly sunny with a chance of showers and thunderstorms. Highs near 90. Chance of rain 30 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 50 percent. .SATURDAY AND SATURDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms. Highs near 90. Lows in the lower 80s. Chance of rain 30 percent. .SUNDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs near 90. Chance of rain 20 percent. .SUNDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 30 percent. .MONDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. .MONDAY NIGHT...Partly cloudy with a slight chance of showers. Lows in the lower 80s. Chance of rain 10 percent. .TUESDAY...Mostly sunny. Highs in the lower 90s. $$