Police have found a woman’s body in a Staten Island storage facility that’s believed to be the missing teacher and mother of three who disappeared Saturday, The Post has learned.

Police cars and a city medical examiner vehicle were parked outside Extra Space Storage on Arden Avenue in Arden Heights early Thursday as crews could be seen going in and out of the building wearing white Tyvek suits.

Jeanine Cammarata, 37, disappeared Saturday night and allegedly sent a flurry of strange text messages saying she needed a break, law enforcement sources said.

On Wednesday, Cammarata’s estranged husband, Michael Cammarata, was charged with assault, stalking and harassment after admitting to police that he punched her in the face, law enforcement sources said.

Police also determined that Michael Cammarata, who lives in Queens, drove to Staten Island on Sunday night, a law enforcement source said.

He was being questioned Thursday morning at the 120th Precinct on Staten Island, and had retained a lawyer, a police source said.

The estranged couple have two children, ages 7 and 3, together. Jeanine Cammarata has another child, 11, with her first husband.

Michael Cammarata had just been served with divorce papers before Jeanine Cammarata went missing, and the two were expected in court Monday for a divorce and child custody hearing over their 3-year-old son and 7-year-old daughter, Jeanine’s lawyer said.

Additional reporting by Natalie Musumeci