We are beginning to enter what will be a period of very mild and above average warmth as the weather pattern is becoming more zonal and our thus air masses are becoming modified pacific air masses rather than Polar and Arctic in origin
Over the next 24 hours a rapidly weakening trough will move through with cooler temperatures than seen today but as it lifts more northeast rather than east the cold air associated with it will mostly stay to the north and west of the forecast area, for tonight mostly mid 30s to low 40s are expected, tomorrow’s high temperatures will mostly be in the mid 50s to around 60 degrees then tomorrow night will be the chilliest with lows falling into the upper 20s to mid 30s
The trough will be out of here by Thursday with a zonal flow developing , and with the aid of a already mild air mass down sloping off the Appalachians from west to east a very mild period of weather is expected from Thursday through the weekend and into early next week where a brief but strong ridge will build over the east coast by Sunday through Tuesday, through the period highs will mostly be in the upper 50s to around 60 over NE PA to the mid to upper 60s for most everyone else with even a few low 70s possible ,besides the immediate coast with influence off the chilly Atlantic and sea breeze influence with mostly mid 50s to low 60s. The exception to these temps may be Saturday when clouds and rain is possible
It will be dry through Friday but starting later Friday the active wet weather pattern will resume in the form of a cold front that will drop south and stall over or just north of the area, an area of low pressure will develop along the front and a wave of moderate to heavy rain will be possible Friday into Saturday depending on exactly where the front stalls.
The front will wash out and dissipate by Sunday and a ridge will develop , leading to the warmest conditions being Sunday through Tuesday and when 70 degree readings are most likely , but as a powerful trough develops over the Midwest and slowly tracks east a very heavy rainstorm will be possible Monday into Tuesday, it’s hard to say how much but with a slow moving cold front , negative tilted trough and areas of low pressure the threat is there for a impressive rainstorm
After this storm moves through the mild weather will come to at least a brief end as a trough heads east with the air masses becoming more Polar in nature.