FPUS52 KKEY 040803 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 403 AM EDT Mon May 4 2026 FLZ076>078-050000- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 403 AM EDT Mon May 4 2026 .TODAY...Partly to mostly cloudy with a chance of showers and a slight chance of thunderstorms. Highs in the mid 80s. Northwest winds 5 to 10 mph, becoming north. Chance of rain 40 percent. .TONIGHT...Partly to mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the mid 70s. North to northeast winds 5 to 10 mph, becoming northeast to east. Chance of rain 30 percent. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. East winds 5 to 10 mph, becoming variable in the afternoon. Chance of rain 10 percent. .TUESDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows in the upper 70s. Light and variable, becoming east to southeast near 5 mph. Chance of rain 10 percent. .WEDNESDAY...Mostly sunny. Highs in the upper 80s. Southeast winds 5 to 10 mph. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the upper 70s. Highs in the upper 80s. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows in the upper 70s. Highs in the mid 80s. .FRIDAY NIGHT...Partly to mostly cloudy. Lows in the upper 70s. .SATURDAY...Partly sunny. Highs in the mid 80s. .SATURDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows in the upper 70s. Chance of rain 10 percent. .SUNDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 10 percent. $$