Federal officials said the work to rectify the electricity situation at the Metropolitan Detention Center will not be completed until Monday.
"The heat is sporadic and inconsistent," Nydia Velázquez told the station.
It has been a difficult situation for more than a day, Patton said.
"The lighting failed the cells, all locked since Thursday evening, which lasts at least 36 hours, when the sun goes down, it is pitch-dark inmates who suffer from discomfort can not read the instructions on the medication "Patton said.
On Saturday, demonstrators gathered in front of the building. Some wore signs saying "Shut up," "Torture in the MDC," and other slogans.
Gabriel Pedreira, an organizer of the local branch of the American Association of Government Employees, said they were worried about the health and safety of employees "forced to work in sub-zero temperatures".
said Pedreira federal jail officials work while wearing hats, coats and scarves.
The National Meteorological Service said temperatures this week have been in the teenager overnight. On Sunday, the low will be around 30 degrees and the high is expected to be in the lower 40s. The low Monday morning will be in the upper 30s.
The mayor of New York, Bill de Blasio, said on Twitter that the city sends hundreds of blankets and hand warmers to the detention center and generators are made available. "We have informed the Federal Bureau of Prisons that the supplies are coming," the mayor added.
The Bureau of Prisons said that the facility had a fire in a room with electrical switches and one of the two buildings had a partial power failure. A new control panel has been installed, but the crew needs to restore power.
The buildings have emergency lighting, said spokeswoman Valery Logan.
She said inmates have hot water in their sinks and showers.
Bob McGee, a spokesman for Con Edison, said he was ready to reconnect electricity once the repairs are completed.
"It is unacceptable, illegal and inhumane to arrest people without basic amenities, access to a lawyer, or medical care," New York Prosecutor General Letitia A. James said in a statement. "The reported conditions in the Metropolitan Detention Center are appalling, prisoners and prisoners have rights, and these rights must be enforced, and my office is in contact with law enforcement agencies and lawyers of inmates, overseeing this deeply troubling situation."
The facility houses 1
Julia Jones of CNN contributed to this report.