This Afternoon:
Sunny, with a high near 84. Southwest wind around 5 mph.
Tonight:
Patchy fog after 5am. Partly cloudy, with a low around 61. South wind 0 to 5 mph.
Sunday:
Patchy fog before 8am. Sunny, with a high near 86. Northwest wind 0 to 5 mph.
Sunday Night:
Patchy fog after 5am. Mostly clear, with a low around 62. Northeast wind 0 to 5 mph.
Monday:
Patchy fog before 9am. Mostly sunny, with a high near 85. Northeast wind 0 to 5 mph.
Monday Night:
Partly cloudy, with a low around 60.
Tuesday:
Mostly sunny, with a high near 83.
Tuesday Night:
Mostly cloudy, with a low around 60.
AREA FORECAST DISCUSSION
National Weather Service Mount Holly NJ
241 AM EDT Sun Sep 14 2025
Weather Synopsis:
A weakening cold front approaches the region late tonight. High
pressure briefly builds in on Monday before weakening and
shifting northeastward. Meanwhile, a coastal low which is
expected to develop off the coast of the Carolinas later tonight
will gradually drift northward, approaching our region Tuesday
into Thursday before dissipating. Late in the week, a cold front
may approach the region.
Near Term:
THROUGH TONIGHT -
A weak upper level trough is moving through this morning, bringing
some cloud cover to the region. Should be pretty quiet through the
AM hours, though some patchy fog is possible, primarily in rural
areas and where skies are mainly clear (Southern New Jersey and
Delmarva).
For today, a cold front approaches from the northwest but washes out
as it moves in. High pressure will be in control resulting in
another nice day. The surface high near the Gulf of Maine will
foster in a light onshore flow. Skies will be mostly sunny to start,
but some diurnal cumulus develops as the day goes on. Sufficient
heating of the mainland will result in a sea-breeze developing later
today and push inland, likely getting all the way to the I-95
corridor this evening. Highs get into the low to mid 80s.
Another tranquil night expected. A light onshore flow and mostly
clear skies could result in some patchy fog developing, mainly over
rural areas within the coastal plain of New Jersey and Delmarva.
Seasonable temperatures expected with lows in the upper 50s/low
60s.
Short Term:
MONDAY THROUGH WEDNESDAY -
We should have a brief period of high pressure and tranquil
conditions on Monday, followed by increasing chances for rain
showers especially closer to the coast as a weak coastal low
meanders closer to our region Tuesday into Wednesday.
Regardless of where the front ends up late tonight/Monday morning,
expect only modestly cooler conditions on Monday as compared to
today as the front will be weakening as it approaches the region.
High temperatures on Monday should be near to slightly above normal,
ranging from the mid 70s along the coast and in the Poconos to lower
80s for most inland locations.
The biggest change in this period is the earlier potential arrival
of both rain and breezy conditions along the coast due to the
coastal low. It still appears the coast low will be weak, and
weakening as it gets this far north, so at this point, it looks like
wind gusts up to 30 mph along the coast, and widespread rain amounts
near or below 1.5 inches. Additionally, with persistent onshore
flow, boundary layer heating will be tempered, limiting instability.
Consequently, there is very little risk for any significant impacts;
Our region isn`t outlooked in the excessive rainfall outlook, winds
should stay well below impactful levels, and while we may see some
thunderstorms, at this point the risk for severe storms appears
very low (less than 5%).
Long Term:
WEDNESDAY NIGHT THROUGH SATURDAY -
By Thursday, the reflection of the coastal low at the surface will
be very diffuse, if not completely dissipated. However, a mid and
upper level open wave trough may still be near our region, resulting
in continued chances for rain, primarily for the coastal plains.
Once the mid/upper level trough slides eastward by late Thursday, we
could see a brief warm up on Friday, thanks in part to a short wave
ridge. However, it still appears a cold front will approach the
region late in the week. It has some characteristics of a backdoor
cold front which are notoriously hard to model, especially with
respect to timing, this far out, so have stayed close to the blend
of guidance.
Click for full NWS PHI Office Area Forecast Discussion
