FNUS52 KKEY 100805 FWFKEY Fire Weather Planning Forecast for the Florida Keys National Weather Service Key West FL 405 AM EDT Thu Sep 10 2026 .Discussion... Expect higher than normal shower and thunderstorm chances over the next couple of days. Expect activity to be episodic. Seasonable conditions. RH will remain elevated with overnight recovery into the mid 80s and minimum afternoon values of mid 60s. Winds will be light to gentle out of the east to southeast. FLZ076>078-110215- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the cities of Key Largo, Marathon, and Key West 405 AM EDT Thu Sep 10 2026 Today Tonight Fri Cloud Cover Pcldy Pcldy Mclear Chance Precip (%) 60 30 50 Chance of Thunder (%) 50 30 50 Weather Type Tstms Tstms Tstms Max/Min Temp 91 82 91 Min/Max RH % 66 90 65 Wind 20ft AM (mph) E 7 SE 8 Wind 20ft PM (mph) E 6 E 7 E 6 Precip Duration 8 4 2 Precip Begin 6 AM Continuing Continuing Precip End Continuing Continuing Continuing Precip Amount 0.08 0.03 0.09 Mixing Hgt(ft-agl) 3200 800 3400 Transport Wnd (mph) SE 14 E 16 E 14 Dispersion Index 42 13 44 Max LVORI 4 5 4 Remarks...None. $$ .FORECAST FOR DAYS 3 THROUGH 7... .FRIDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. East winds around 10 mph. .SATURDAY...Mostly sunny with a chance of showers and thunderstorms. Highs around 90. Southeast winds around 5 mph. .SATURDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. East winds around 10 mph. .SUNDAY...Mostly sunny with a chance of showers and thunderstorms. Highs around 90. Southeast winds around 5 mph. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 80s. East winds around 5 mph. .MONDAY...Mostly sunny with a chance of showers and thunderstorms. Highs around 90. East winds around 5 mph. .MONDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. East winds around 10 mph. .TUESDAY...Mostly sunny with showers likely and a chance of thunderstorms. Highs around 90. East winds around 10 mph. .TUESDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. East winds around 15 mph. .WEDNESDAY...Mostly sunny with showers likely and a chance of thunderstorms. Highs around 90. East winds around 10 mph. $$