This Afternoon:
Sunny, with a high near 75. Northwest wind around 10 mph.

Tonight:
Mostly clear, with a low around 47. Northeast wind 5 to 10 mph.

Thursday:
Partly sunny, with a high near 74. Southeast wind 5 to 10 mph.

Thursday Night:
A slight chance of showers and thunderstorms between 7pm and 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Southeast wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

Friday:
A slight chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Southwest wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Friday Night:
A chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms between 11pm and 5am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

Saturday:
Showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 80%.

Saturday Night:
Showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Chance of precipitation is 80%.

Extended Forecast

Sunday Chance Rain Showers	Sunday Night Chance Showers And Thunderstorms	Monday Chance Rain Showers	Monday Night Chance Showers And Thunderstorms	Tuesday Chance Rain Showers	Tuesday Night Chance Rain Showers
Hi 67 °F	Lo 49 °F	Hi 63 °F	Lo 49 °F	Hi 69 °F	Lo 55 °F
PoP 40%	PoP 40%	PoP 40%	PoP 40%	PoP 50%	PoP 40%

AREA FORECAST DISCUSSION
National Weather Service Mount Holly NJ
704 PM EDT Wed Apr 30 2025

Weather Synopsis:
A frontal boundary will stall just to our south for tonight through Thursday. The front then lifts back north as a warm front Thursday night. Meanwhile, high pressure builds to our north tonight into Thursday before shifting eastward. A cold front gradually works its way across our area late Friday and Saturday. An upper level low could then affect our area early next week.

Near Term:
THROUGH THURSDAY -

Heading into tonight, upper level ridge builds overhead as surface high pressure settles over New England. This will result in winds becoming light and variable overnight under mostly clear skies. Should radiate pretty well considering sky/wind conditions, so lows tonight are expected to fall into the 40s/50s, with upper 30s possible in the higher terrain.

For Thursday, high pressure will gradually shift off the coast of New England as low pressure cuts up through the Great Lakes. Expect an increase in cloudiness throughout the course of the day as winds shift from northeast to southeast. Also, an increase in moisture advection shall begin as a result of the onshore flow. Overall, any precipitation should hold off until at least Thursday night, although a rouge shower or storm cannot be ruled out over western- most areas late in the afternoon. High temperatures will range from the upper 60s to mid 70s, with low 60s found near/along the coast.

Short Term:
THURSDAY NIGHT THROUGH SATURDAY - For Thursday night through Friday, an elongated area of low pressure will move north and eastward through the Great Lakes region and then on through Ontario into Quebec. This will initially push a warm front across the area Thursday night which is likely to produce some scattered showers and storms, mainly for our eastern PA into northern NJ zones. Any storms at this point are not expected to be severe. With the warm front moving through, it will be a fairly mild night with lows ranging from the 50s north to the low to mid 60s around the urban corridor from Wilmington through Philly and then on southward through Delmarva. Friday looks to be quite warm and a little on the humid side as the area breaks into the warm sector with SW winds around 15 gusting 20 to 25 mph at times. Expect variable cloud cover and as a weakening cold front approaches in the afternoon, this will produce some scattered showers and storms around the area. ML CAPES look to max out around 1000 j/kg but the shear and forcing do not look to be terribly strong. For this reason, while it`s possible there could be some isolated severe storms, this is not likely to be a significant severe weather day. Highs for Friday look to be mostly in the low to mid 80s except cooler (mainly in the 70s) right near the coast and over the Pocono Plateau.

For Friday night, some scattered showers/storms could linger into the evening before diminishing overnight. Otherwise it will be another mild night with lows mostly in the 60 to 65 degree range except mid/upper 50s across the Lehigh Valley northward into the Poconos and NW NJ.

For Saturday, a long wave trough continues to deepen over the central into the eastern US with the potential for a piece of this to eventually evolve into a closed upper level low. Meanwhile, at the surface, a slow moving frontal boundary will gradually move into the area from the north and west. This will result in increasing chances for showers/storms and it should be noted that the trend with this front is slower. So while it had initially looked like the morning would be the wetter part of the day, it`s now looking more like showers/storms will be more heavily favored in the afternoon into the early evening. It is during this latter part of the day our POPs are generally around 70 percent. With this later timing we`ll have to closely monitor the severe weather threat as deep layer shear also looks to be increasing. That said, instability could still be a limiting factor due to cloud cover. But in addition to any possible severe weather, there also looks to be at least some potential for showers/storms to produce heavy rainfall with at least a threat for localized flooding. This will be due to the slow moving nature of the front, PWATS reaching around 1.4 to 1.5 inches or so, and a setup that could favor training and slow moving storms. Expect highs Saturday mainly in the 70s except cooler once again right near the coast and over the southern Poconos.

Long Term:
SATURDAY NIGHT THROUGH WEDNESDAY - Simply put, the long range forecast continues to remain quite uncertain as it will depend heavily on if and exactly where a closed upper level low sets up. Some of our forecast guidance, such as the GFS, continues to be more progressive and drier with the weather pattern but even this model is hinting that some showers could linger close by into Sunday before it dries out next week. Many, but not all, of the GEFS ensemble members are similar to this. Meanwhile the ECMWF and the GEM favor a large and slow moving closed upper level low setting up to our west near the midwestern states with an associated surface trough extending from there into the SE CONUS. This could set up a prolonged period of moist southeast flow bringing several days of rainfall, possibly heavy at times, into the area. But it`s still far from a certainty this will happen as it`s also possible if the system forms but sets up too far south and/or west we`ll miss the heaviest of the rain. At this point though, something to be aware of that we`ll be continuing to monitor in the coming days since a worst case scenario could mean we`d see several inches of rain that would go beyond just being beneficial. For the gridded forecast, stayed close to the NBM (National Blend of Models) given the continuing uncertainty with POPs around 30 to 40 percent for just about every 12 hour period from Sunday through the middle of next week.

Click for full NWS PHI Office Area Forecast Discussion