FPUS52 KKEY 101047 AAA ZFPKEY Zone Forecasts for the Florida Keys...UPDATED National Weather Service Key West FL 647 AM EDT Tue Sep 10 2024 FLZ076>078-102000- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 647 AM EDT Tue Sep 10 2024 Updated to reduce rain chance for today ...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT THIS EVENING... .TODAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Southeast winds near 5 mph. Chance of rain 20 percent. Heat index values up to 110. .TONIGHT...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 80s. Northeast to east winds near 5 mph, becoming east to southeast 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY...Partly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the lower 90s. Southeast winds 5 to 10 mph. Chance of rain 30 percent. Heat index values up to 110. .WEDNESDAY NIGHT...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 80s. Southeast winds 5 to 10 mph. Chance of rain 30 percent. .THURSDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Southeast to south winds near 5 mph, becoming variable in the afternoon. Chance of rain 20 percent. Heat index values up to 110. .THURSDAY NIGHT AND FRIDAY...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 80s. Highs in the lower 90s. Chance of rain 20 percent. .FRIDAY NIGHT...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 80s. Chance of rain 30 percent. .SATURDAY THROUGH MONDAY...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Highs in the lower 90s. Lows in the lower 80s. Chance of rain 40 percent. $$