FNUS52 KKEY 120829
FWFKEY

Fire Weather Planning Forecast for the Florida Keys
National Weather Service Key West FL
429 AM EDT Thu Mar 12 2026

.Discussion...
High pressure over the Atlantic will continue to pull away from
the region today due to an incoming frontal system. This will
loosen the grip of the high resulting in gentle to moderate
southeast to south breezes this morning slackening and becoming
light to gentle southwesterly breezes this afternoon. A brief
period of light and variable breezes is possible tonight before
breezes clock around the compass and become east to southeast
again on Friday. Moisture begins to slowly increase across the
region today continuing through Friday leading to mainly slight
chances for showers. The more beneficial rain remains on track to
effect the Keys over the weekend. Expect temperatures to remain
above normal. Min RH values will be in the mid 60s percent today
and Friday with good RH recovery into the upper 90s percent
overnight.

FLZ076>078-130030-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Including the cities of Key Largo, Marathon, and Key West
429 AM EDT Thu Mar 12 2026

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Pcldy        Pcldy
Chance Precip (%)     20           30           20
Chance of Thunder (%) 0            0            20
Weather Type          Showers      Showers      Tstms
Max/Min Temp          85           71           83
Min/Max RH %          64           97           65
Wind 20ft AM (mph)    S 10                      NE  5
Wind 20ft PM (mph)    S  8         Lgt/Var      SE  6
Precip Duration       1            2            1
Precip Begin          8 AM         Continuing   Continuing
Precip End            Continuing   Continuing   Continuing
Precip Amount         0.00         0.02         0.10
Mixing Hgt(ft-agl)    2800         400          2600
Transport Wnd (mph)   S 13         N  5         SE  8
Dispersion Index      40           5            18
Max LVORI             4            6            6

Remarks...None.

$$

.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 70s. Southeast
winds around 5 mph.
.SATURDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 80s. Southeast winds
around 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 70s. East winds
around 10 mph.
.SUNDAY...Partly sunny with showers likely and a chance of
thunderstorms. Highs in the lower 80s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 70s. Southeast
winds around 10 mph.
.MONDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the lower 80s. Southeast winds around
10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows around 70. Southwest winds around 5 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. West winds
around 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 60s. North winds
around 10 mph.
.WEDNESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. North winds around
15 mph.

$$

MJV