Temperatures, for the most part, will be in the lower or middle 50s. Later Wednesday and especially during the night, the main thrust of the precipitation associated with this push of milder air, or that being caused by “warm advection,” will occur across upstate New York and western New England. Nonetheless, some of the typically sheltered valleys in between the mountain ranges could be near the freezing mark before midnight — which may lead to a few small pockets of freezing rain or drizzle (which may amount to a couple of hundredths of an inch.)
While there’ll be a cold front pushing eastward Thursday, we’re still expecting some milder air to surge out ahead of it — a couple of showers are also anticipated, especially during the afternoon and evening along the coastal plain. This will be due (in large part) to the fact that the greatest upper-level support (or jet stream dynamics) will be lifting northeastward into Canada late Wednesday and Thursday, via the Great Lakes. With that in mind, we believe that quantitative rainfall totals should average a quarter of an inch or less across most of the greater Baltimore area.
Temperatures will peak in the upper 50s Thursday. And, once the front pushes through, Friday will still be mild by mid-December’s standards. It is very possible that the maximum temperatures on Friday will occur during the morning or midday — and then it starts to turn cooler in the afternoon.
Have a good day !!!