FPUS52 KKEY 152018 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 418 PM EDT Thu Oct 15 2026 FLZ076>078-161045- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 418 PM EDT Thu Oct 15 2026 .TONIGHT...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 80s. East winds 10 to 15 mph. Chance of rain 40 percent. .FRIDAY...Mostly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. East winds 5 to 10 mph. Chance of rain 40 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the upper 70s. East winds near 5 mph. Chance of rain 50 percent. .SATURDAY...Showers likely with a chance of thunderstorms. Highs in the upper 80s. North winds 5 to 10 mph. Chance of rain 60 percent. .SATURDAY NIGHT...Showers with a chance of thunderstorms. Becoming breezy with lows in the upper 70s. Northeast winds near 15 mph, increasing to 15 to 20 mph. Chance of rain 80 percent. .SUNDAY...Showers with a chance of thunderstorms. Breezy with highs in the mid 80s. Chance of rain 80 percent. .SUNDAY NIGHT AND MONDAY...Showers likely with a chance of thunderstorms. Windy. Lows in the upper 70s. Highs in the mid 80s. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Windy with lows in the upper 70s. Chance of rain 50 percent. .TUESDAY...Partly sunny with a chance of showers and thunderstorms. Windy with highs in the mid 80s. Chance of rain 40 percent. .TUESDAY NIGHT...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Windy with lows in the mid 70s. Chance of rain 30 percent. .WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Windy. Highs in the mid 80s. Lows in the mid 70s. Chance of rain 40 percent. .THURSDAY...Partly cloudy with a chance of showers. Breezy with highs in the mid 80s. Chance of rain 50 percent. $$