Port St. Lucie, Florida 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

493
FXUS62 KMLB 261123
AFDMLB

Area Forecast Discussion
National Weather Service Melbourne FL
723 AM EDT Thu Mar 26 2026

...New AVIATION...

.KEY MESSAGES...
Issued at 324 AM EDT Thu Mar 26 2026

- A high risk of rip currents continues at all central Florida
  Atlantic beaches today. Entering the surf is strongly
  discouraged!

- Isolated showers are possible through the day with a very low
  chance for lightning. Drier conditions return for Friday.

- Windy conditions and increased rain chances arrive this weekend
  in association with a cold front. Hazardous beach and boating
  conditions are likely to last into early next week.

&&

.DISCUSSION...
Issued at 324 AM EDT Thu Mar 26 2026

Today-Friday...Overall drier conditions are in store for the rest of
the work week as high pressure settles over the Florida Peninsula.
Most of the area is dry early this morning, with the exception of a
brief shower that dissipates as quickly as it develops. Temperatures
are mild, spanning the 60s to low 70s. Today will feature a mix of
clouds and sunshine, though isolated showers cannot be ruled out as
the sea breeze pushes inland this afternoon. Limited moisture
concentrated around the 850mb level and dry air above/below this
level will limit the development of organized convection. The
forecast maintains a 15-20 percent chance of rain, mainly north of
Lake Okeechobee and the Treasure Coast. The sea breeze should clear
out clouds along the coast and keep temps there a few degrees cooler
(upper 70s) with inland locations reaching the low/mid 80s.

Even warmer daytime temperatures are expected Friday as high
pressure becomes centered over the peninsula and adjacent Atlantic
waters. If you are looking to get outside and enjoy some pleasant
springtime weather, Friday is that day. Winds stay light all day
with only a light wind developing as the sea breeze migrates inland
again in the afternoon. Overnight lows both Thursday and Friday
night settle into the 60s for most, running a few degrees above
normal for late March.

Saturday-Sunday...Changes are in store this weekend as a cold front
quickly presses south Saturday, bringing windy and hazardous beach
conditions and the chance for showers/isolated storms. High pressure
quickly breaks down locally, though dry conditions should last
through Saturday morning for most. A ribbon of higher moisture is
anticipated along and just behind the front, helping to saturate the
lower levels late Saturday afternoon and into the evening. Rain
chances climb from 20-40 percent in the afternoon to around 60-65
percent, mainly along the coast south of Cape Canaveral Saturday
night. Rain chances gradually shift south on Sunday with total rain
amounts highest along the Treasure Coast (around 1-1.25").

It will be windy over much of the area by Saturday afternoon with
frequent gusts reaching 20-30 mph. In fact, areas north of
Orlando and particularly closer to the coast may experience 30-40
mph gusts during the afternoon and evening. A Wind Advisory may be
considered for these areas in future updates. Life-threatening
rip currents and very rough surf will exist at area beaches, so
entering the water will be strongly discouraged.

Temperatures will be at their warmest Saturday, ranging from the
upper 70s north to the mid 80s Orlando southward. Cooler air and
more clouds spill in on Sunday with highs only reaching the low
to mid 70s, staying slightly below normal.

Monday-Wednesday...Coastal showers remain possible Monday and
Tuesday as breezy but significantly less gusty onshore flow
persists. These coastal showers may occasionally move farther inland
during the daytime. High pressure becomes well established through
mid week, allowing temperatures to slowly rebound each day, reaching
the low to mid 80s by Tuesday and Wednesday.

&&

.MARINE...
Issued at 324 AM EDT Thu Mar 26 2026

High pressure gradually builds over the local waters today and
Friday, maintaining light east-southeast winds (less than 15 knots).
Lingering moisture will support isolated to scattered showers and a
brief lightning storm, with chances tapering off this afternoon and
evening. Seas 3-5 feet today, decreasing to 2-4 feet Friday.

A strong cold front arrives Saturday with rapidly building winds and
seas. Hazardous to dangerous conditions are forecast to develop from
north to south Saturday afternoon into Saturday night, lasting into
early next week. Near gale-force northeast winds build seas as high
as 10-15 feet Saturday night into early Sunday morning. East winds
decrease to 20-25+ knots Sunday and eventually to 15-20 knots
Monday. Elevated seas of 6-9 feet linger through Monday as high
pressure is reestablished.

&&

.AVIATION...
(12Z TAFs)
Issued at 700 AM EDT Thu Mar 26 2026

Fog has developed across portions of Lake and Volusia counties,
with LIFR conditions present at LEE. TEMPO in place for these
conditions through 13Z, but will continue to closely monitor and
extend in time as needed. Fog will diminish after sunrise, with
VFR conditions anticipated through the remainder of today. Light
and variable winds pick up to around 10 knots out of the east,
becoming light and variable once again late tonight. There is a
low chance for some showers across the interior terminals and DAB,
but confidence was too low to include in the forecast at this
time. Model guidance is also hinting at the potential for fog
development once again late tonight into early Friday, but too
early to add in mention within the forecast at this time due to
uncertainty in location of development.

&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  80  62  84  62 /  20   0   0   0
MCO  83  63  87  65 /  20   0  10   0
MLB  80  64  82  64 /  20   0  10   0
VRB  80  63  82  63 /  10  10  10   0
LEE  83  63  87  63 /  20   0  10   0
SFB  83  63  87  64 /  20   0  10   0
ORL  83  64  87  65 /  20   0  10   0
FPR  81  62  82  62 /  10  10  10   0

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...None.
&&

$$

DISCUSSION...Schaper
AVIATION...Tollefsen