FNUS52 KKEY 200930
FWFKEY

Fire Weather Planning Forecast for the Florida Keys
National Weather Service Key West FL
530 AM EDT Sat Jun 20 2026

...DISPERSION INDICES LESS THAN 20 ARE POSSIBLE ACROSS THE FLORIDA
KEYS SUNDAY AFTERNOON...

.Discussion...
Mainly dry conditions expected through the weekend with rain
chances at 10 percent or less. Chances for wetting rain will be
near zero. Boundary layer will remain such that afternoon min RH
values will fall only into in the 60 percentile and recover
overnight into the lower 80 percentile. Gentle southeasterly
breezes will weaken to light and variable this afternoon and
continue through Sunday. Dispersion indices may fall to and below
20 on Sunday.

FLZ076>078-202315-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Including the cities of Key Largo, Marathon, and Key West
530 AM EDT Sat Jun 20 2026

                      Today        Tonight      Sun

Cloud Cover           Mclear       Pcldy        Mclear
Chance Precip (%)     10           10           0
Chance of Thunder (%) 10           10           0
Weather Type          Tstms        Tstms        None
Max/Min Temp          90           83           90
Min/Max RH %          64           81           63
Wind 20ft AM (mph)    SE  5                     S  5
Wind 20ft PM (mph)    Lgt/Var      Lgt/Var      Lgt/Var
Precip Duration       1            1
Precip Begin          8 AM         Continuing
Precip End            Continuing   6 AM
Precip Amount         0.00         0.02         0.00
Mixing Hgt(ft-agl)    3000         1500         3100
Transport Wnd (mph)   S  6         N  6         W  6
Dispersion Index      27           3            20
Max LVORI             3            5            4

Remarks...None.

$$

.FORECAST FOR DAYS 3 THROUGH 7...
.SUNDAY NIGHT...Mostly clear. Lows in the mid 80s. Light winds.
.MONDAY...Sunny. Highs around 90. Southeast winds around 5 mph.
.MONDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the mid 80s. Southeast winds around 5 mph.
.TUESDAY...Mostly sunny. Highs around 90. Southeast winds around
5 mph.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 80s. East winds
around 5 mph.
.WEDNESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 90. East winds around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the lower 80s. Northeast winds around
5 mph.
.THURSDAY...Sunny with a slight chance of showers. Highs around
90. East winds around 5 mph.
.THURSDAY NIGHT...Mostly clear with a slight chance of showers.
Lows in the lower 80s. East winds around 5 mph.
.FRIDAY...Sunny with a slight chance of showers and
thunderstorms. Highs around 90. Southeast winds around 5 mph.

$$