FNUS52 KKEY 260828
FWFKEY

Fire Weather Planning Forecast for the Florida Keys
National Weather Service Key West FL
428 AM EDT Sun Jul 26 2026

.Discussion...
Near normal temperatures are expected today with highs near 90
and overnight lows in the lower 80s. Min RH will hover around 65
percent this afternoon while high boundary layer moisture supports
a slight chance of showers and storms. RH will recover to around
85 to 90 percent overnight. Light and variable winds will result
in poor to fair dispersion indices today before shifting to the
west to northwest this afternoon. Rain chances will increase
across the Florida Keys today in association with a longwave
trough which is forecast to extend southwest along the Eastern
Seaboard and across Florida.

FLZ076>078-270045-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Including the cities of Key Largo, Marathon, and Key West
428 AM EDT Sun Jul 26 2026

                      Today        Tonight      Mon

Cloud Cover           Pcldy        Pcldy        Pcldy
Chance Precip (%)     40           60           60
Chance of Thunder (%) 40           50           50
Weather Type          Tstms        Tstms        Tstms
Max/Min Temp          92           81           91
Min/Max RH %          63           89           63
Wind 20ft AM (mph)    Lgt/Var                   Lgt/Var
Wind 20ft PM (mph)    Lgt/Var      Lgt/Var      Lgt/Var
Precip Duration       2            8            9
Precip Begin          6 AM         Continuing   Continuing
Precip End            Continuing   Continuing   Continuing
Precip Amount         0.12         0.19         0.20
Mixing Hgt(ft-agl)    3800         600          3900
Transport Wnd (mph)   W  7         NW  9        W  9
Dispersion Index      26           8            28
Max LVORI             4            5            4

Remarks...None.

$$

.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the lower 80s. Southwest winds around
5 mph.
.TUESDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the lower 90s. Southwest winds around
5 mph.
.TUESDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the lower 80s. Southwest winds around
5 mph.
.WEDNESDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 90s. Southwest winds around
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 80s. West winds
around 10 mph.
.THURSDAY...Mostly sunny. Highs in the lower 90s. Southwest winds
around 5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 80s. West winds
around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 90s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 80s. South winds
around 5 mph.
.SATURDAY...Mostly sunny with a slight chance of showers. Highs
in the lower 90s. Southeast winds around 5 mph.

$$

MJV