The search will begin at 10 a.m. at Burkeland Gardens on Ninth Street across from Southern Bank. Volunteers are being sought.
Bennett was last seen near Herman Lodge Boulevard about 9 p.m. Jan. 16, according to police. She is 5 feet, 8 inches tall and 160 pounds, with brown eyes and black hair. She was wearing navy blue pajamas with white polka dots. Police said she also has a medical shoe on her right foot and a slipper on the other foot.
Anyone who sees Bennett can call the Waynesboro Police Department at (706) 554-4999.
Police have asked that searchers meet at the designated location and not search on their own.