FPUS52 KKEY 150758 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 358 AM EDT Sun Mar 15 2026 FLZ076>078-152145- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 358 AM EDT Sun Mar 15 2026 .TODAY...Showers likely with a chance of thunderstorms. Some thunderstorms may contain strong winds. Highs in the lower to mid 80s. Southeast winds 10 to 15 mph, decreasing to near 10 mph. Chance of rain 60 percent. .TONIGHT...Mostly cloudy with a chance of showers and thunderstorms. Some thunderstorms may contain strong winds. Lows in the mid 70s. Southeast winds 10 to 15 mph. Chance of rain 50 percent. .MONDAY...Partly sunny with a chance of showers and thunderstorms. Highs in the lower 80s. Southeast to south winds 10 to 15 mph, becoming southwest near 10 mph. Chance of rain 50 percent. .MONDAY NIGHT...Showers likely with a chance of thunderstorms. Lows in the upper 60s. Southwest to west winds 10 to 15 mph, becoming west to northwest near 15 mph. Chance of rain 70 percent. .TUESDAY...Cloudy with a chance of showers and thunderstorms. Breezy. Highs in the mid 70s. Northwest to north winds 15 to 20 mph, becoming north to northeast. Chance of rain 40 percent. .TUESDAY NIGHT...Cloudy with a chance of showers and thunderstorms. Windy with lows in the mid 60s. Chance of rain 50 percent. .WEDNESDAY...Showers likely with a chance of thunderstorms. Windy. Highs in the lower 70s. Chance of rain 60 percent. .WEDNESDAY NIGHT...Cloudy with a chance of showers and a slight chance of thunderstorms. Windy with lows in the mid 60s. Chance of rain 50 percent. .THURSDAY...Mostly cloudy in the morning, then becoming partly sunny. A chance of showers and a slight chance of thunderstorms. Windy with highs in the mid 70s. Chance of rain 40 percent. .THURSDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of showers. Breezy with lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Partly cloudy with a slight chance of showers. Breezy in the morning. Highs in the mid 70s. Chance of rain 10 percent. .FRIDAY NIGHT...Mostly clear. Lows in the mid 60s. .SATURDAY...Mostly sunny. Highs in the mid 70s. $$