FPUS52 KKEY 100800 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 400 AM EDT Tue Mar 10 2026 FLZ076>078-102330- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 400 AM EDT Tue Mar 10 2026 .TODAY...Mostly sunny. Highs in the lower 80s. East winds 10 to 15 mph. .TONIGHT...Partly cloudy. Lows in the mid 70s. East winds near 15 mph, becoming east to southeast. .WEDNESDAY...Mostly sunny. Highs in the lower 80s. East to southeast winds near 15 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy after midnight. Lows in the mid 70s. East to southeast winds near 15 mph, becoming southeast and decreasing to 10 to 15 mph. .THURSDAY...Partly cloudy. Highs in the lower 80s. Southeast winds near 10 mph, becoming south and decreasing to near 5 mph. .THURSDAY NIGHT...Partly cloudy with a slight chance of showers. Lows in the lower to mid 70s. Chance of rain 20 percent. .FRIDAY...Partly to mostly cloudy with a chance of showers. Highs in the lower 80s. Chance of rain 30 percent. .FRIDAY NIGHT...Partly to mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower to mid 70s. Chance of rain 30 percent. .SATURDAY AND SATURDAY NIGHT...Partly to mostly cloudy with a chance of showers. Highs in the lower 80s. Lows in the lower to mid 70s. Chance of rain 30 percent. .SUNDAY...Partly to mostly cloudy with a chance of showers. Highs in the lower 80s. Chance of rain 40 percent. .SUNDAY NIGHT...Partly to mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 70s. Chance of rain 40 percent. .MONDAY...Partly cloudy with a chance of showers. Highs in the lower 80s. Chance of rain 50 percent. $$ MJV