Expires:202512210900;;933442 FPUS52 KKEY 202054 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 354 PM EST Sat Dec 20 2025 FLZ076>078-210900- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 354 PM EST Sat Dec 20 2025 .TONIGHT...Partly cloudy. Lows near 70. Northeast winds 5 to 10 mph, becoming northeast to east and increasing to near 10 mph after midnight. .SUNDAY...Mostly sunny. Highs near 80. Northeast to east winds 10 to 15 mph. .SUNDAY NIGHT...Partly cloudy. Becoming breezy. Lows in the lower 70s. Northeast to east winds 10 to 15 mph, increasing to 15 to 20 mph. .MONDAY...Sunny, windy with highs in the upper 70s. Northeast winds near 20 mph. .MONDAY NIGHT...Partly cloudy and windy. Lows in the lower 70s. Northeast to east winds near 20 mph. .TUESDAY...Mostly sunny and windy. Highs near 80. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear and breezy. Lows in the lower 70s. Highs in the upper 70s. .CHRISTMAS DAY...Mostly sunny and breezy. Highs in the upper 70s. .THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows near 70. Highs in the upper 70s. $$ CLR