FPUS52 KKEY 171512 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 1012 AM EST Tue Feb 17 2026 FLZ076>078-172115- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 1012 AM EST Tue Feb 17 2026 .REST OF TODAY...Partly cloud early, becoming mostly sunny. Highs in the lower 80s. East to southeast winds increasing to near 10 mph. .TONIGHT...Mostly clear. Lows near 70. East to southeast winds near 10 mph. .WEDNESDAY...Mostly sunny. Highs in the lower 80s. East to southeast winds 10 to 15 mph, decreasing to 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 70s. East to southeast winds 5 to 10 mph, becoming southeast. .THURSDAY...Mostly sunny. Highs in the lower 80s. Southeast winds near 5 mph. .THURSDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows in the lower 70s. Highs in the lower 80s. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers. Becoming breezy. Cooler. Lows in the lower to mid 60s. Chance of rain 10 percent. .MONDAY...Mostly sunny and breezy. Highs near 70. $$