The weather was much better at the U.S. Open on Sunday. So was Novak Djokovic. Under a cloudless blue sky, in only a hint of wind, defending champion Djokovic got his game into high gear and reached his third consecutive final at Flushing Meadows by beating fourth-seeded David Ferrer of Spain 2-6, 6-1, 6-4, 6-2 in a match suspended a day earlier.