Daytona Beach, Florida 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

092
FXUS62 KMLB 181123
AFDMLB

Area Forecast Discussion
National Weather Service Melbourne FL
623 AM EST Thu Dec 18 2025

...New AVIATION...

.KEY MESSAGES...
Issued at 240 AM EST Thu Dec 18 2025

- Poor to hazardous boating conditions will exist across portions
  of the coastal waters today into tonight.

- Rain chances increase slightly today into tonight (up to 20-40
  percent), with isolated storms also possible, mainly over the
  coastal waters.

- Highs will be above normal today and Friday, in the upper 70s
  to low 80s for much of the region, then turning cooler behind a
  cold front into Friday night.

&&

.DISCUSSION...
Issued at 240 AM EST Thu Dec 18 2025

Today-Tonight...Mid/upper level trough moving through the Central
U.S. will shift a cold front into the southeast states tonight. This
will nudge high pressure over the Atlantic eastward, with low level
SE winds gradually strengthening and veering to the S/SW later
today into tonight. Moisture will increase across the region, with
PW values rising to 1.4-1.5 inches this afternoon into tonight.
Isolated to scattered onshore moving showers will continue to be
possible along the coast through the morning/early afternoon as
onshore flow prevails. Then into the rest of the afternoon/evening
additional isolated to scattered showers will be able to develop,
moving toward the north-northeast. However, overall rain chances
have continued to trend downward over the past 24 hours, with
PoPs around 20-40 percent today and 20-30 percent tonight. Model
guidance continues to show limited instability, with SBCAPE
generally at or below 500 J/kg, so lightning storm potential
remains low over land, but can`t rule out a stray storm or two
late in the afternoon or into tonight. Better potential for
isolated storm development will be across the coastal waters where
instability will be greater. If a storm can develop, main threats
will be lightning strikes, strong wind gusts and brief heavy
downpours.

Warming trend continues today with highs reaching the upper 70s to
low 80s and mild overnight lows in the mid to upper 60s.

Friday-Sunday...Front will approach the area Friday morning and move
through central Florida during the afternoon/early evening. Frontal
passage looks to remain mostly dry, with any lingering showers and
isolated storms across the coastal waters pushing farther offshore
by the afternoon. Highs remain above normal, reaching the upper 70s
north of Orlando and low to mid 80s farther south. Temperatures then
turn cooler into Friday night behind the front, with lows falling to
the upper 40s northwest of I-4 and in the 50s for much of the rest
of the region, except in the 60s along the Treasure Coast.

High pressure builds in toward the Mid-Atlantic states behind the
front, with winds veering quickly onshore Saturday. Highs drop
slightly into the weekend, but still remain above normal in the
upper 70s to low 80s most locations, except mid 70s along the
Volusia coast. Lows will range from the 50s to low 60s. Forecast
keeps conditions mostly dry into the weekend, but isolated showers
may still develop over the waters.

Monday-Wednesday...A strong area of high pressure builds toward the
Mid-Atlantic region, with a weak backdoor front moving in from the
north-northeast and pushing south-southwest across the area. This
will lead to a breezy E/NE flow developing, transporting isolated
to scattered showers over the waters onshore. For now have just
added PoPs around 20 percent along the coast for Monday. Pressure
gradient looks to then gradually relax through midweek, with high
pressure just north of the area, maintaining onshore winds and
mostly dry conditions Tuesday-Wednesday. Temperatures remain near
to above normal, with highs in the 70s and lows in the mid 50s to
low 60s.

&&

.MARINE...
Issued at 240 AM EST Thu Dec 18 2025

Today-Tonight...Poor to hazardous boating conditions will exist
across portions of the coastal waters today into tonight. Small
craft should exercise caution over the Gulf Stream waters as a fresh
southeast breeze up to 15-20 knots builds seas up to 6 feet. A
Small Craft Advisory then goes into effect tonight for the
offshore waters of Volusia County, as S/SW winds near 20 knots
build seas further to 7 feet. Across the offshore waters of
Brevard County and the Treasure Coast, small craft will still need
to exercise caution into tonight for S/SW winds 15-20 knots and
seas up to 6 feet.

Isolated to scattered showers will continue to develop across the
waters pushing onshore along the coast this morning. Showers will
then continue through the afternoon and into tonight, and may also
see isolated thunderstorm development, mainly across the gulf stream
waters. However, a stray storm or two may be able to develop over
land and push offshore during the late afternoon/evening hours.

Friday-Friday night...A cold front approaches central Florida Friday
morning and crosses the waters into the afternoon/evening. Poor
boating conditions will exist offshore of Volusia and Brevard
counties through Friday night as seas linger up to 6 feet even as
westerly winds of 15-20 knots decrease to 10-15 knots and switch to
the north-northwest behind the passing front. Wind speeds across the
remainder of the waters are forecast to remain around 10-15 knots
Friday, with seas 3-5 feet.

Saturday-Monday...Boating conditions improve into the weekend, as
winds veer onshore Saturday and then become N/NE into Sunday. Wind
speeds drop to 5-10 knots, with seas falling to 3-5 feet Saturday
and 2-4 feet through the daytime Sunday. It will be mostly dry
through the weekend, but isolated showers will be possible at times.

Another front is forecast to push through the waters from the
northeast to southwest into early next week, with a strong area of
high pressure moving in toward the Mid-Atlantic states. This will
increase winds out of the E/NE Monday, with seas quickly building,
leading to another round of poor to hazardous boating conditions.

&&

.AVIATION...
(12Z TAFs)
Issued at 602 AM EST Thu Dec 18 2025

GFS-MOS is indicating some MVFR-IFR CIGs developing late tonight
into Friday morning, mainly north of MLB. Have included
FEW/SCT020-030 to show this trend for now with VFR conditions
prvailing through the TAF. E/ESE winds around 5-10 KT early this
morning will become SE and increase to 18-23KT by late morning.
Onshore moving showers will continue along the coast this morning.
Additional showers will approach from the west this afternoon and
evening, eventually pushing offshore into the Atlantic. Have
included VCSH to start off along the coast this morning, with VCSH
starting across the interior 19-21Z before transitioning back
along the coast at 22/23Z. A low (20 percent) chance of lightning
storms this afternoon. However given the limited instability,
have kept TS out of the TAF for now.

Any lingering showers should push offshore around 05Z Friday,
becoming mostly dry overnight. Winds will then veer S/SW and
decrease to around 5 KT or less tonight before becoming SW/W and
increasing to 5-10 KT by Friday morning.


&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  78  64  78  53 /  40  20   0   0
MCO  80  67  80  54 /  30  20   0   0
MLB  79  66  81  59 /  30  20  10   0
VRB  79  65  82  61 /  30  20  10   0
LEE  79  64  78  50 /  30  30   0   0
SFB  80  66  79  52 /  30  20   0   0
ORL  79  66  79  54 /  30  20   0   0
FPR  80  65  83  61 /  30  20  10  10

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...Small Craft Advisory from 7 PM this evening to 7 AM EST Friday
     for AMZ570.

&&

$$

DISCUSSION...Weitlich
AVIATION...Watson