Lake Skannatati in Tuxedo was closed during the search.
The man went underwater early Sunday afternoon.
Thiells Fire Department divers were called to the scene after the Tuxedo Town Fire Department, Monroe Fire Department, Cronomer Valley Fire Department and Stony Point Fire Department all responded.
An autopsy will be performed to determine the exact cause of death.
Check back to Daily Voice for updates.
Click here to follow Daily Voice Armonk and receive free news updates.