Overnight:
Areas of fog. Mostly cloudy, with a low around 60. Northwest wind around 0 mph.
Thursday:
Areas of fog before 9am. Sunny, with a high near 85. Northwest wind 0 to 5 mph.
Thursday Night:
Clear, with a low around 59. West wind around 5 mph.
Friday:
Sunny, with a high near 86. Northwest wind 0 to 10 mph.
Friday Night:
Mostly clear, with a low around 57. North wind 5 to 10 mph.
Saturday:
Sunny, with a high near 78.
Saturday Night:
Partly cloudy, with a low around 57.
Sunday:
Mostly cloudy, with a high near 75.
AREA FORECAST DISCUSSION
National Weather Service Mount Holly NJ
601 AM EDT Thu Sep 18 2025
Weather Synopsis:
Weak low pressure will push out to sea through today with weak
high pressure building briefly in its wake. A cold front will
pass through the region Friday night, then cooler and dry high
pressure will build into the area through the weekend. High
pressure will shift offshore into early next week, resulting in
moderating temperatures.
Near Term:
THROUGH TONIGHT -
As we head into the day today, weakening low pressure off the
coast will be moving away to the northeast. This will result in
a gradual clearing trend from NW to SE with any fog/drizzle also
coming to an end by mid morning. By the afternoon expect partly
to mostly sunny skies for most areas with highs inland
generally reaching the low to mid 80s. Near the coast and over
the southern Poconos it will be a bit cooler with highs mainly
in the upper 70s. West to NW winds will generally be around 5 to
8 mph for most areas with winds becoming more southerly in the
afternoon near the coast due to a sea breeze.
Tonight will continue tranquil with lows generally ranging from
the mid 50s in the cooler spots such as interior, NW NJ and NE
PA with low 60s near the coast as well as over Delmarva and the
urban corridor.
Short Term:
FRIDAY THROUGH SATURDAY NIGHT -
Overall benign and dry weather conditions expected to close out
the week and into the weekend. A trough will pass to our
northeast, then ridging will build in from the west. At the
surface, weak high pressure will be in place on Friday. A cold
front will pass through the region from north to south Friday
night, then cooler high pressure will build in for the remainder
of the weekend.
Friday will be a rather warm and sunny day with afternoon highs
climbing into the mid to upper 80s in most areas. A sea breeze
will keep the immediate coast cooler. Dewpoints will be in the
low 60s, so it won`t be too humid feeling. Low temperatures
Friday night will range from the 50s northwest of I-95 to around
60 degrees from I-95 and southeast. The frontal passage will be
dry, and will be accompanied by some scattered clouds and a
wind shift to the northeast.
Saturday will be notably cooler than Friday as Canadian high
pressure builds into New England. Easterly onshore winds and
scattered clouds through the day. Clouds will increase Saturday
night due to the impinging marine layer. Lows will depend on
cloud coverage, but should range from the mid to upper 40s near
and north of I-80 to the 50s and low 60s farther south.
Long Term:
SUNDAY THROUGH WEDNESDAY -
No significant weather expected to close out the weekend and
into the middle of next week. Conditions will remain largely dry
with a gradual warming trend in temperatures. The weekend
Canadian high pressure will gradually shift offshore into early
next week. The stalled frontal boundary will dissipate and
retreat northeast as well.
Sunday will be the coolest day of the long term period thanks
to marine layer clouds and the strongest influence of the
Canadian high pressure. Mostly cloudy skies can be expected with
continued onshore winds. Most areas will remain dry, though
cannot rule out a couple showers in Delmarva near the stalled
frontal boundary. Highs will be mainly in the low to mid 70s.
Lows Sunday night in the 50s to low 60s.
Heading into next week, the high will weaken and slide
offshore, resulting in moderating temperatures and return
southerly flow. Mainly seasonable conditions expected, with a
slight chance of some isolated showers by Tuesday and Wednesday.
Highs will rebound to near 80 degrees for Monday then into the
low to mid 80s for Tuesday and Wednesday. Lows in the mid 50s to
mid 60s.
Click for full NWS PHI Office Area Forecast Discussion
