After some early morning snowfall(Philly Int'l received an inch, but to the south and east across Southern NJ there was well over a half of foot in locations; you can see the regional snowfall totals here: http://mesonet.agron.iastate.edu/wx/afos/p.php?pil=PNSPHI&e=201401291757) the sun was shining just after sunrise. We only reached 21 this afternoon thanks to the fresh snow pack(acting like a reflector as the sun's rays would penetrate the surface, but the snow has a high albedo and thus shot most of the rays back into the atmosphere)and a northwest wind between 10-15mph it made it feel much colder. As for a low we'll achieve that tonight with a light wind, a clear sky, and fresh snow pack as lows will dip down around 10 in Center City(which is always dumb to say because there is no official weather station there; they are at either at PHL or NE Philly Airport) whereas in the suburbs it will be in the lower and middle single digits.
Tomorrow will be sunny with a light westerly wind as highs will flirt with the freezing mark; overnight temperatures will be in the middle 20s(where they should be this time of year) and so on Friday we'll jump into the lower 40s(where we should be!) with more clouds than sunshine as a clipper systems passes by with no precipitation.
For the weekend the clipper will stall across the Delmarva, but then travel northward on Saturday as a warm front; along the front will be a low pressure area and will provide rain late Saturday night into Sunday morning. The good news is that temperatures on both days will be on either side of 50 so this will ensure it's all RAIN. The rain should get out of here by late Sunday afternoon so there shouldn't be any worries if you have any Superbowl parties planned to go to.
Behind that system it once again stalls out across the Delmarva and may provide some light rain across Southern NJ and Southern DE for Monday, but otherwise it will be partly sunny with highs around 40 and lows in the middle 20s(seasonable at last after spending the last two weeks 10-20 degrees BELOW average!). On Tuesday we'll cloud back up with another system, but highs will be in the middle 40s during the day; the fun comes at night with temperatures around freezing so there could be a mixture of snow(north) and rain(south) with daytime highs on Wednesday in the upper 30s.
So that's it for now and be sure to check out the rest of the seven day forecast any time at www.scottderekwx.com/forecast.html.