FNUS52 KKEY 190923 FWFKEY Fire Weather Planning Forecast for the Florida Keys National Weather Service Key West FL 523 AM EDT Mon Oct 19 2026 .Discussion... A cold front has stalled over the southern Florida Straits this morning. Breezy to windy conditions persist across the Florida Keys. Shower chances will decrease today to near nil by sunset. Min RH values will decrease from today to tomorrow, going from the mid 60s to the low 60s. Winds may begin to slacken a bit by Tuesday afternoon, but transport winds will remain elevated. FLZ076>078-192315- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the cities of Key Largo, Marathon, and Key West 523 AM EDT Mon Oct 19 2026 Today Tonight Tue Cloud Cover Pcldy Mclear Mclear Chance Precip (%) 30 0 0 Chance of Thunder (%) 20 0 0 Weather Type Tstms None None Max/Min Temp 86 75 86 Min/Max RH % 66 89 63 Wind 20ft AM (mph) NE 13 NE 12 G20 Wind 20ft PM (mph) NE 12 NE 12 NE 11 G19 Precip Duration 2 Precip Begin 6 AM Precip End 6 PM Precip Amount 0.04 0.00 0.00 Mixing Hgt(ft-agl) 3500 1600 4200 Transport Wnd (mph) NE 26 NE 22 NE 21 Dispersion Index 62 36 53 Max LVORI 3 3 4 Remarks...None. $$ .FORECAST FOR DAYS 3 THROUGH 7... .TUESDAY NIGHT...Mostly clear. Lows in the mid 70s. Northeast winds around 10 mph. .WEDNESDAY...Sunny. Highs in the mid 80s. North winds around 10 mph. .WEDNESDAY NIGHT...Mostly clear with a slight chance of showers. Lows in the mid 70s. Northeast winds around 10 mph. .THURSDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. North winds around 15 mph. .THURSDAY NIGHT...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the mid 70s. Northeast winds around 10 mph. .FRIDAY...Mostly sunny with showers likely and a chance of thunderstorms. Highs in the lower 80s. Northeast winds around 15 mph. .FRIDAY NIGHT...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the mid 70s. Northeast winds around 15 mph. .SATURDAY...Mostly sunny with showers likely and a slight chance of thunderstorms. Highs in the lower 80s. Northeast winds around 20 mph. .SATURDAY NIGHT...Partly cloudy with showers likely and a slight chance of thunderstorms. Lows in the mid 70s. Northeast winds around 20 mph. .SUNDAY...Breezy. Mostly sunny with showers likely and a slight chance of thunderstorms. Highs in the lower 80s. Northeast winds around 25 mph. $$