FPUS52 KKEY 050901 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 401 AM EST Thu Nov 5 2026 FLZ076>078-052300- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 401 AM EST Thu Nov 5 2026 .TODAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. Northeast winds near 10 mph. Chance of rain 20 percent. .TONIGHT...Mostly clear. Lows in the mid 70s. Northeast winds 5 to 10 mph. .FRIDAY...Mostly sunny. Highs in the lower 80s. Northeast winds 5 to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows in the mid 70s. Northeast winds 5 to 10 mph. .SATURDAY...Mostly sunny. Highs in the lower 80s. North winds 5 to 10 mph. Chance of rain 10 percent. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers. Highs in the lower 80s. Lows in the mid 70s. Chance of rain 10 percent. .SUNDAY...Partly sunny with a slight chance of showers. Highs in the lower 80s. Chance of rain 20 percent. .SUNDAY NIGHT AND MONDAY...Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Highs in the lower 80s. Chance of rain 20 percent. .MONDAY NIGHT THROUGH VETERANS DAY...Mostly cloudy with a slight chance of showers. Lows in the mid 70s. Highs in the lower 80s. Chance of rain 20 percent. $$