Mr Obama, 68, is the half-brother of the president's late father. He has lived in the US illegally since arriving from Kenya as a teenager for school.
The date of the hearing was announced on Wednesday.
His status emerged after his 2011 drunken driving arrest in Framingham, Massachusetts. A judge continued that case for a year without a finding after Mr Obama acknowledged prosecutors had enough evidence to convict him.
When he was arrested a spokesman for the president said he was not aware he was in the US illegally and would not intervene on his behalf.
Onyango Obama's lawyer, Scott Bratton, said he hoped the hearing would allow his client to remain in the US. "Everybody wants to stay in America," he said.