FPUS52 KKEY 040759 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 359 AM EDT Sat Apr 4 2026 FLZ076>078-042200- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 359 AM EDT Sat Apr 4 2026 .TODAY...Mostly sunny with a slight chance of showers. Breezy. Highs near 80. East winds 15 to 20 mph. Chance of rain 10 percent. .TONIGHT...Mostly clear with a slight chance of showers. Breezy. Lows in the lower 70s. East winds 15 to 20 mph. Chance of rain 20 percent. .SUNDAY...Mostly sunny with a slight chance of showers. Highs in the lower 80s. East winds near 15 knots, decreasing to 10 to 15 mph. Chance of rain 20 percent. .SUNDAY NIGHT...Mostly clear with a slight chance of showers. Lows in the lower 70s. East winds near 10 mph. Chance of rain 20 percent. .MONDAY...Mostly sunny with a slight chance of showers and a slight chance of thunderstorms. Highs in the lower 80s. East to northeast winds 5 to 10 mph. Chance of rain 20 percent. .MONDAY NIGHT AND TUESDAY...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 70s. Highs near 80. Chance of rain 30 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of showers. Becoming breezy. Lows in the lower 70s. Chance of rain 30 percent. .WEDNESDAY...Partly sunny with a chance of showers and a slight chance of thunderstorms. Breezy. Highs around 80. Chance of rain 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Windy. Lows in the lower 70s. Chance of rain 40 percent. .THURSDAY...Partly sunny with a chance of showers and a slight chance of thunderstorms. Breezy. Highs near 80. Chance of rain 30 percent. .THURSDAY NIGHT...Mostly cloudy with a slight chance of showers. Windy. Lows in the lower 70s. Chance of rain 20 percent. .FRIDAY...Mostly sunny with a slight chance of showers. Breezy. Highs near 80. Chance of rain 20 percent. $$