Tonight:
Mostly clear, with a low around 32. Northeast wind around 5 mph.

Wednesday:
Partly sunny, with a high near 55. East wind 5 to 15 mph, with gusts as high as 30 mph. New rainfall amounts less than a tenth of an inch possible.

Wednesday Night:
A chance of rain showers. Mostly cloudy, with a low around 46. Southeast wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Thursday:
A chance of rain showers before 5pm, then a chance of showers and thunderstorms. Cloudy, with a high near 77. Southwest wind 10 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.

Thursday Night:
Showers and thunderstorms likely. Cloudy, with a low around 58. West wind 5 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Friday:
Rain showers likely before 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

Friday Night:
A chance of rain showers after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.

Saturday:
Rain showers likely. Cloudy, with a high near 57. Chance of precipitation is 70%.

Extended Forecast

Saturday Night Rain Showers Likely	Sunday Showers And Thunderstorms Likely	Sunday Night Showers And Thunderstorms Likely	Monday Chance Rain Showers then Partly Sunny	Monday Night Partly Cloudy	Tuesday Mostly Sunny
Lo 50 °F	Hi 68 °F	Lo 43 °F	Hi 56 °F	Lo 33 °F	Hi 48 °F
PoP 60%	PoP 60%	PoP 50%	PoP 40%

AREA FORECAST DISCUSSION
National Weather Service Mount Holly NJ
910 PM EDT Tue Apr 1 2025

Weather Synopsis:
High pressure will be in control through Wednesday. A warm front will lift north across the area on Wednesday night as a strong low tracks through Quebec on Thursday. The front will return on Friday as it slowly drops south of the area by Friday night. Several waves of low pressure will ride along this boundary causing it to fluctuate north and south through the weekend yielding unsettled weather. High pressure should return by early next week.

Near Term:
THROUGH WEDNESDAY - Forecast on track. Only minor tweaks made to the grids.

Tonight, high pressure shifts east, which will lead to surface winds becoming more northeasterly. Winds should remain elevated enough on the outer periphery of the high around 5- 10 mph, but the usual sheltered spots will likely go calm and radiate well under mostly clear skies. This is noteworthy because the Frost/Freeze program begins April 1 for our Delmarva counties. With the dry airmass in place and a cool northeast breeze, this should limit/prevent any frost development despite the low temps in the mid to upper 30s. Further north, lows will be in the upper 20s to mid 30s, but the growing season is not active yet in these locations to warrant any freeze headlines.

For Wednesday, the high will continue to exit and shift off the coast of New England. Should see mostly clear skies early in the day, becoming more cloud-filled in the afternoon. Winds will become southeasterly due to the positioning of the high, causing a more onshore component. It will also become breezy on Wednesday with winds increasing to 10-20 mph with gusts locally up to 30 mph. The onshore flow will help keep a lid on temperatures across the north and east portions of the region, with upper 40s to low 50s for areas north of I-78 as well as the down the Jersey shore. Warmer temperatures in the mid to upper 50s will be around for the Philly metro, southeast Pennsylvania, inland South Jersey, and the Delmarva. The next system will begin to approach late afternoon into the early evening as a warm front extending from a strong low over the Great Lakes. This warm front may bring in some warm air and moisture advection to the region late afternoon, resulting in some showers across the Lehigh Valley and Poconos before sunset.

Short Term:
WEDNESDAY NIGHT THROUGH FRIDAY - Zonal flow aloft will persist through Wednesday night with upper ridging building in for Thursday into Thursday night. At the surface, departing high pressure will give way to a warm front that lifts north across the area on Wednesday night before stalling across New England on Thursday. Associated low pressure tracks up through Quebec on Thursday as the "stalled" boundary begins to slowly drop back south through the day on Friday.

For Wednesday night, the warm front eastward from the strong area of low pressure tracking into the Great Lakes will surge northward across our area on Wednesday night. This will result in a ramp up in warm air and moisture advection. Still anticipate to see a few isolated to scattered showers associated with the front, along with some patchy fog especially north of the I-78 corridor. Overall any QPF should be light. Lows will be in the upper 30s to upper 40s.

For Thursday and into Thursday night, the entire area will be within the warm sector so expecting a mild day across the region with highs in the upper 60s to upper 70s, with locales in the Delmarva pushing 80 degrees despite mostly cloudy skies. Some upper level energy will be around as well as the stalled boundary across New England begins to drop back to the south crossing back across our region on Thursday night. As it does so, should see some showers and thunderstorms develop in the late afternoon and evening hours. A few of these storms could become severe as low level shear is quite high and some forecast soundings depict a narrow corridor of instability available to tap into. However, there remains a ton of variability amongst guidance so the extent of the severe weather threat is uncertain. This is lies with the general thinking by the Storm Prediction Center which has the majority of our forecast area in a MARGINAL Risk (Level 1/5) for severe weather on Thursday into Thursday night. More details to come over the next few days.

For Friday, the boundary will be draped over the area in the morning but should continue to drop south of the area through the afternoon. Any shower activity should remained mostly confined to the Delmarva region so have kept the mention of showers and thunderstorms there, with drying conditions filtering in elsewhere north of the boundary. Highs will vary from the low 60s north to mid 70s south.

Long Term:
FRIDAY NIGHT THROUGH TUESDAY - The boundary that pushed south of the area on Friday will generally remain south of the area through Saturday. However, several disturbances will be riding along this boundary which will cause the boundary to fluctuate north and south through the weekend. With this in mind, there will be several rounds of showers around this weekend. The first round appears to occur during the day on Saturday where temperatures will be in the upper 40s to the north and mid 60s to the south. A second round then looks to occur late Sunday into Sunday night as the boundary lifts back north of the area where temps on Sunday will be back in the 60s and 70s. Long story short, the weekend period will present a period of relatively low predictability but unsettled weather conditions. Should begin to see rapid improvement by early next week as a cold front is on pace to track across the region late Sunday night into Monday which will shunt all precipitation east. High pressure will build back in from the west and is expected to remain through Tuesday.

In terms of temperatures for next week, the pattern will support a prolonged period of below normal temperatures. The Climate Prediction Center projects a ~70% chance of below normal temperatures for much of next week. This will present potential for frost and freeze hazards across portions of the area, as the Frost/Freeze program will begin on April 11th for areas south of I- 78 into PA and NJ. It begins today (April 1st) for Delmarva.

Click for full NWS PHI Office Area Forecast Discussion