Would an Army Poncho Liner be warm enough from Pearisburg,VA (ETA 1-June-2004) into Hanover, NH (isn't that the normal "pick-up your cold stuff again" town)? Assume user would still have long-johns, hat, socks and gloves.
My brother Casey (cburnett on this board) is on the trail now and had it recomended to him. He currently doesn't have a planned warm weather bag, so he has been asking around.