FPUS52 KKEY 122002 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 402 PM EDT Thu Mar 12 2026 FLZ076>078-131000- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 402 PM EDT Thu Mar 12 2026 .TONIGHT...Partly cloudy, becoming mostly cloudy. A chance of showers. Lows in the mid 70s. West winds near 5 mph. Chance of rain 30 percent. .FRIDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the lower 80s. North to northeast winds near 5 mph, becoming east to southeast. Chance of rain 20 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower to mid 70s. East winds 5 to 10 mph, becoming east to southeast and increasing to near 10 mph. Chance of rain 40 percent. .SATURDAY...Partly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the lower 80s. East to southeast winds near 10 mph. Chance of rain 50 percent. .SATURDAY NIGHT...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 70s. Southeast winds 10 to 15 mph. Chance of rain 50 percent. .SUNDAY...Showers likely with a chance of thunderstorms. Highs in the lower 80s. Chance of rain 60 percent. .SUNDAY NIGHT...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Breezy with lows in the mid 70s. Chance of rain 50 percent. .MONDAY...Mostly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the lower 80s. Chance of rain 50 percent. .MONDAY NIGHT... Showers likely with a chance of thunderstorms. Lows in the upper 60s. Chance of rain 60 percent. .TUESDAY...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Breezy with highs in the upper 70s. Chance of rain 40 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Windy with lows in the mid 60s. Chance of rain 40 percent. .WEDNESDAY...Mostly cloudy with a chance of showers. Windy with highs in the mid 70s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers. Windy with lows in the upper 60s. Chance of rain 30 percent. .THURSDAY...Mostly sunny with a slight chance of showers. Windy with highs in the mid 70s. Chance of rain 20 percent. $$