FNUS52 KKEY 080751 FWFKEY Fire Weather Planning Forecast for the Florida Keys National Weather Service Key West FL 351 AM EDT Fri May 8 2026 ...DISPERSION INDICES BELOW 20 EXPECTED TODAY... .Discussion... Light to gentle east to southeast breezes will become variable at times this afternoon and evening. The lack of flow and associated transport winds will support low dispersion indices today. Despite the poor dispersion, minimum relative humidity values will remain above 60% for each forecast period. Similar conditions will continue for the next several days, including near-nil rain and thunder chances. Temperatures will be above normal, with highs in the upper 80s, and lows struggling to fall below 80 in the overnight periods. FLZ076>078-090215- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the cities of Key Largo, Marathon, and Key West 351 AM EDT Fri May 8 2026 Today Tonight Sat Cloud Cover Mclear Mclear Mclear Chance Precip (%) 0 0 0 Chance of Thunder (%) 0 0 0 Weather Type None None None Max/Min Temp 88 80 89 Min/Max RH % 59 81 62 Wind 20ft AM (mph) Lgt/Var SE 6 Wind 20ft PM (mph) Lgt/Var Lgt/Var SE 6 Precip Duration Precip Begin Precip End Precip Amount 0.00 0.00 0.00 Mixing Hgt(ft-agl) 2500 1400 3200 Transport Wnd (mph) S 3 E 6 SE 13 Dispersion Index 12 6 40 Max LVORI 5 4 3 Remarks...None. $$ .FORECAST FOR DAYS 3 THROUGH 7... .SATURDAY NIGHT...Partly cloudy. Lows in the lower 80s. Southeast winds around 5 mph. .SUNDAY...Mostly sunny. Highs in the upper 80s. Southeast winds around 5 mph. .SUNDAY NIGHT...Partly cloudy. Lows in the lower 80s. Southeast winds around 5 mph. .MONDAY...Mostly sunny with a slight chance of showers. Highs in the upper 80s. Southeast winds around 5 mph. .MONDAY NIGHT...Partly cloudy with a slight chance of showers. Lows around 80. Southwest winds around 5 mph. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Northwest winds around 5 mph. .TUESDAY NIGHT...Partly cloudy. Lows around 80. South winds around 5 mph. .WEDNESDAY...Mostly sunny with a slight chance of showers. Highs in the upper 80s. Northeast winds around 5 mph. .WEDNESDAY NIGHT...Mostly cloudy. Lows around 80. North winds around 5 mph. .THURSDAY...Partly sunny. Highs in the upper 80s. Northeast winds around 5 mph. $$ BT