In his first season with the Islanders, the 39-year-old Weight has recorded nine goals and 26 assists despite missing 29 games because of injury.
Weight will earn $2 million next season, his second with the Islanders. He signed with New York as an unrestricted free agent last July and earned $1.75 million this season. In 1,180 career games, Weight has 274 goals and 730 assists.
The two-time Olympian is one of four American-born players to have recorded at least 200 goals and 700 assists in their career.