Getting Warmer
Yes it's going to warm up, but the question is how much? 850mb temps are soaring the next couple of days...if it were mid-summer highs could reach the mid 80s! But it's not mid-summer and it's that time of year when it becomes difficult to dislodge cool air at the surface. I see this as an issue especially for places north of the Mass Pike, most notably Boston up through the North Shore into Northern New England. So even though highs will be above normal in the 60s attaining 70 is unlikely in those places tomorrow.
Tonight, the boundary between warm and cool is providing enough lift for showers. The heaviest of the showers will travel north of us but we will still get wet and the morning drive will be damp too. I expect a lot of low clouds and fog to form overnight which will also have a very tough time burning off tomorrow under a weak low level inversion. So sun will be very limited as well tomorrow.
On Wednesday, the coldfront will work in from the west with some good forcing along it look for heavier showers and downpours maybe even a few rumbles in the warm moist air. The front will be a slow mover and may still be working through the area on Thursday morning...the upper level winds will be running parallel to the front so not much to push it through.
After it finally does gets through on Thursday, cooler and drier air will be bleeding in through the weekend.