FPUS52 KKEY 120902 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 402 AM EST Fri Dec 12 2025 FLZ076>078-130115- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 402 AM EST Fri Dec 12 2025 .TODAY...Partly sunny. Highs in the upper 70s. Northeast to east winds near 10 mph. .TONIGHT...Partly cloudy with a slight chance of showers. Lows near 70. Northeast to east winds near 10 mph. Chance of rain 10 percent. .SATURDAY...Partly sunny with a chance of showers. Highs in the upper 70s. Northeast to east winds 10 to 15 mph. Chance of rain 30 percent. .SATURDAY NIGHT...Showers likely with a slight chance of thunderstorms. Lows in the lower 70s. East winds 5 to 10 mph. Chance of rain 60 percent. .SUNDAY...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Highs in the upper 70s. Northeast winds near 10 mph, becoming variable and decreasing to 5 to 10 mph. Chance of rain 40 percent. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers. Becoming breezy. Lows in the upper 60s. Chance of rain 20 percent. .MONDAY...Mostly sunny with a slight chance of showers. Breezy. Highs in the mid to upper 70s. Chance of rain 10 percent. .MONDAY NIGHT...Partly cloudy with a slight chance of showers. Breezy. Lows in the upper 60s. Chance of rain 10 percent. .TUESDAY...Mostly sunny with a slight chance of showers. Breezy. Highs in the mid to upper 70s. Chance of rain 10 percent. .TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy with a slight chance of showers. Lows near 70. Highs in the upper 70s. Chance of rain 10 percent. $$