Reagan will be buried next to her husband at the Ronald Reagan Presidential Library in California, officials said on Monday. The late first lady will lie in repose at the library on Wednesday and Thursday.
Reagan, who died Sunday at the age of 94, played an important role in her husband's presidency, guarding his image and launching her own campaign against drug abuse.
The Obamas said Reagan redefined the role of first lady.
"Nancy Reagan once wrote that nothing could prepare you for living in the White House," the Obamas wrote in a joint statement on Sunday. "She was right, of course. But we had a head start, because we were fortunate to benefit from her proud example, and her warm and generous advice."
Michelle Obama also attended former first lady Betty Ford's funeral in 2011.