FPUS52 KKEY 270220 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 1020 PM EDT Sun Apr 26 2026 FLZ076>078-270815- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 1020 PM EDT Sun Apr 26 2026 .OVERNIGHT...Mostly clear. Lows in the mid 70s. Northwest winds 5 to 10 mph, decreasing to near 5 mph. .MONDAY...Mostly sunny with a slight chance of showers. Highs in the mid 80s. Light and variable winds. Chance of rain 10 percent. .MONDAY NIGHT...Mostly clear with a slight chance of showers. Lows in the mid 70s. North to northeast winds 5 to 10 mph, becoming northeast to east and increasing to near 10 mph. Chance of rain 10 percent. .TUESDAY...Mostly sunny with a slight chance of showers. Highs in the mid 80s. Northeast to east winds 10 to 15 mph. Chance of rain 10 percent. .TUESDAY NIGHT...Mostly clear with a slight chance of showers. Lows in the mid 70s. Chance of rain 10 percent. .WEDNESDAY...Mostly sunny with a slight chance of showers. Highs in the mid 80s. Chance of rain 10 percent. .WEDNESDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows in the mid 70s. Highs in the mid 80s. .SUNDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 20 percent. $$