FPUS52 KKEY 022019 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 419 PM EDT Thu Apr 2 2026 FLZ076>078-031030- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 419 PM EDT Thu Apr 2 2026 .TONIGHT...Mostly cloudy with a slight chance of showers. Breezy. Lows in the mid 70s. East winds 15 to 20 mph. Chance of rain 20 percent. .FRIDAY...Partly sunny in the morning, then becoming mostly sunny. A slight chance of showers. Breezy. Highs in the lower 80s. East winds 15 to 20 mph. Chance of rain 10 percent. .FRIDAY NIGHT...Mostly clear with a slight chance of showers. Breezy. Lows in the mid 70s. East winds 15 to 20 mph. Chance of rain 10 percent. .SATURDAY...Mostly sunny with a slight chance of showers. Breezy. Highs in the lower 80s. East winds 15 to 20 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly clear with a slight chance of showers. Breezy in the evening. Lows in the mid 70s. East winds 15 to 20 mph, decreasing to 10 to 15 mph. Chance of rain 20 percent. .SUNDAY...Mostly sunny with a slight chance of showers. Highs in the lower 80s. Chance of rain 20 percent. .SUNDAY NIGHT AND MONDAY...Mostly clear. A slight chance of showers. Lows in the lower 70s. Highs in the lower 80s. Chance of rain 10 percent. .MONDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. .TUESDAY...Partly sunny with a chance of showers and a slight chance of thunderstorms. Highs near 80. Chance of rain 40 percent. .TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. A chance of showers and a slight chance of thunderstorms. Breezy, becoming windy. Lows near 70. Highs in the upper 70s. Chance of rain 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers. Windy. Lows around 70. Chance of rain 40 percent. .THURSDAY...Partly sunny in the morning, then becoming mostly sunny. A chance of showers and a slight chance of thunderstorms. Windy. Highs in the upper 70s. Chance of rain 30 percent. $$