817
FNUS52 KKEY 210841
FWFKEY

Fire Weather Planning Forecast for the Florida Keys
National Weather Service Key West FL
441 AM EDT Tue Jul 21 2026

.Discussion...
Temperatures will remain slightly above normal with highs near
90, overnight lows in the lower to mid 80s. Dew points will be in
the mid to upper 70s. Minimum RH values will be near 60% during
the day, recovering to 85% to 90% overnight. Waves of Sahara dust
will continue to dominate the region for the next few days,
continuing to yield to mainly slight chances.

The National Hurricane Center is continuing to issue advisories
on Tropical Storm Bertha located across the northeastern Gulf of
America. This system poses no risk to the Florida Keys.

FLZ076>078-220130-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Including the cities of Key Largo, Marathon, and Key West
441 AM EDT Tue Jul 21 2026

                      Today        Tonight      Wed

Cloud Cover           Pcldy        Mclear       Mclear
Chance Precip (%)     0            10           10
Chance of Thunder (%) 0            10           10
Weather Type          None         Tstms        Tstms
Max/Min Temp          93           82           92
Min/Max RH %          61           86           60
Wind 20ft AM (mph)    SE 10                     SE  9
Wind 20ft PM (mph)    SE  8        SE  7        SE  7
Precip Duration                    1            1
Precip Begin                       8 PM         Continuing
Precip End                         Continuing   Continuing
Precip Amount         0.00         0.00         0.00
Mixing Hgt(ft-agl)    3500         2100         4000
Transport Wnd (mph)   SE 13        E 15         SE 13
Dispersion Index      55           16           56
Max LVORI             3            4            3

Remarks...None.

$$

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

$$

MJV