Ducey is set to oversee the lighting of the 25-foot blue spruce harvested in Heber on Tuesday morning.
The annual tradition will feature songs from the choir from the Benchmark Elementary School in Phoenix. Schoolchildren from Mountain Meadows Primary School in Heber will also attend.
The tree was donated by the Heber school, which is part of the Heber-Overgaard Unified School District.
The ceremony will also highlight a charity that collects and provides items for children in foster care.