FPUS52 KKEY 300820 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 420 AM EDT Sat May 30 2026 FLZ076>078-302100- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 420 AM EDT Sat May 30 2026 .TODAY...Partly to mostly cloudy with a slight chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds 5 to 10 mph, becoming variable. Chance of rain 20 percent. .TONIGHT...Mostly cloudy with a slight chance of showers. Lows in the lower 80s. Variable winds near 5 mph, becoming south to southwest late. Chance of rain 10 percent. .SUNDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. South to southwest winds near 5 mph. Chance of rain 20 percent. .SUNDAY NIGHT...Mostly cloudy. Lows in the lower 80s. South to southwest winds near 5 mph. .MONDAY...Mostly cloudy in the morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds 5 to 10 mph, becoming variable. Chance of rain 10 percent. .MONDAY NIGHT...Mostly cloudy. Lows in the lower 80s. .TUESDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20 percent. .TUESDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 80s. Chance of rain 20 percent. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 80s. Lows near 80. Chance of rain 40 percent. .THURSDAY...Mostly cloudy in the morning, then becoming partly sunny. A chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 50 percent. .THURSDAY NIGHT...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows near 80. Chance of rain 40 percent. .FRIDAY...Partly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Chance of rain 30 percent. $$ DP