Curry connected on 13-of-18 shots from field before leaving the game in the fourth quarter with an apparent ankle injury. Curry drained six three-pointers and dished off eight helpers before exiting.
Klay Thompson supplied 18 points and Harrison Barnes added 16 with eight rebounds for the Warriors, who have won three of their last four overall.
Washington got 23 points from Cartier Martin in their second in seven games.
The Wizards' John Wall added 14 points before being ejected in the third quarter with his second technical foul.