Expires:202512300115;;426182 FPUS52 KKEY 290903 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 403 AM EST Mon Dec 29 2025 FLZ077-078-300115- Monroe Middle Keys-Monroe Lower Keys- Including the communities of Marathon and Key West 403 AM EST Mon Dec 29 2025 .TODAY...Mostly sunny. Highs in the upper 70s. Northeast winds near 5 mph, becoming northwest this afternoon. .TONIGHT...Partly cloudy. Lows in the mid to upper 60s. Northwest winds 5 to 10 mph. .TUESDAY...Partly cloudy with a slight chance of showers. Breezy. Highs in the lower 70s early, then slowly falling temperatures. Northwest to north winds 15 to 20 mph. Chance of rain 10 percent. .TUESDAY NIGHT...Mostly clear. Breezy. Less humid with lows in the upper 50s. North winds 15 to 20 mph. .WEDNESDAY...Sunny. Breezy early. Highs in the mid to upper 60s. North winds 15 to 20 mph, decreasing to 10 to 15 mph. .WEDNESDAY NIGHT AND NEW YEARS DAY...Mostly clear. Lows 55 to 60. Highs in the upper 60s. .THURSDAY NIGHT...Clear. Lows near 60. .FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs in the lower 70s. Lows in the mid 60s. .SATURDAY THROUGH SUNDAY...Mostly clear. Highs in the mid 70s. Lows in the upper 60s. $$