Two systems will be affecting the country through the weekend, one lingering today, and another one will work its way from coast to coast.
The first system will continue to move through east-central Canada today and will just continue to produce a few lingering snow showers in the Great Lakes mainly early except for the favorable lake effect snow regions as northwest winds continue chances there. Further east a few inches of snow are possible in parts of New England, and mainly rain shower chances from Boston south-southwestward to northern FL and then west along the Gulf coast to southeast TX near a cold front.
The other system will move out of the Pacific Northwest today and into the central and northern Plains by late night, and then into the Southeast by Saturday evening meeting up with the cold front which becomes a warm front early on Saturday along the Gulf Coast. This system then moves east northeast through the rest of the weekend getting off the Mid-Atlantic coast on Sunday and then beginning to pass south of New England late Sunday night. There will be snow accumulation potential from east TN to southern NJ, and with any shift northward this could make it to Philadelphia, New York City, and Boston. Further south from southern and east NC south through FL heavy rain and a few storms will be possible with much if not all of this activity past Tampa before the Super Bowl begins.