FNUS52 KKEY 200834 FWFKEY Fire Weather Planning Forecast for the Florida Keys National Weather Service Key West FL 434 AM EDT Fri Mar 20 2026 .Discussion... Fresh northeasterly breezes will begin to slacken today becoming light to moderate for the next few days. Shower chances are limited due to drier air moving into the area. RH values will be in the mid to lower 50s during the day but will recover to mid 80s overnight. FLZ076>078-210245- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the cities of Key Largo, Marathon, and Key West 434 AM EDT Fri Mar 20 2026 Today Tonight Sat Cloud Cover Mclear Mclear Mclear Chance Precip (%) 10 0 0 Chance of Thunder (%) 0 0 0 Weather Type Showers None None Max/Min Temp 77 63 77 Min/Max RH % 59 85 53 Wind 20ft AM (mph) N 12 NE 9 Wind 20ft PM (mph) NE 11 NE 10 NE 8 Precip Duration 1 Precip Begin 6 AM Precip End 6 PM Precip Amount 0.01 0.00 0.00 Mixing Hgt(ft-agl) 3900 700 1600 Transport Wnd (mph) NE 18 NE 15 NE 14 Dispersion Index 57 25 24 Max LVORI 4 3 3 Remarks...None. $$ .FORECAST FOR DAYS 3 THROUGH 7... .SATURDAY NIGHT...Mostly clear. Lows in the upper 60s. Northeast winds around 5 mph. .SUNDAY...Sunny. Highs in the upper 70s. East winds around 5 mph. .SUNDAY NIGHT...Mostly clear. Lows in the upper 60s. East winds around 5 mph. .MONDAY...Sunny. Highs in the upper 70s. East winds around 5 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 60s. East winds around 5 mph. .TUESDAY...Sunny. Highs in the upper 70s. Northeast winds around 10 mph. .TUESDAY NIGHT...Mostly clear. Lows around 70. East winds around 10 mph. .WEDNESDAY...Sunny with a slight chance of showers. Highs in the upper 70s. East winds around 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 70s. Northeast winds 5 to 10 mph. .THURSDAY...Sunny with a slight chance of showers. Highs in the upper 70s. East winds 5 to 10 mph. $$