The visit ended with a meeting in coach Kyle Flood's office and an offer extended.
"I'm very excited about it obviously," Southers said. "I've been wanting a Rutgers offer for some time now, so to finally get it feels good.
"It was great. I was there all day. I got there around 7:45 and I'm just leaving right now [at 4:30]. It was a long day. It was a great experience. Meeting all of the players and coaches was a great thing."
Flood emphasizes Southers' body type and the need for Big Ten linemen in his program during the conversation.
"They like my size a lot, the fact that I'm a big guy and I move very well," he said. "They said that's what they're looking for with an offensive lineman."
Monmouth was the first New Jersey school to extend an offer, but Rutgers is the first from a power conference.
"It means a lot because I live in the state and I've been following Rutgers," Southers said. "And to get an offer from them just validates my hard work to this point."
Southers watched a practice and received an in-depth tour of the campus and facilities during his visit. He has not made plans to return, but said he will be back in the summer to see more of the program now that he has an offer.
"I would say seeing the campus for the first time was definitely a plus," he said. "It was something I liked it. Practice was very intense. It's definitely something I liked."
Southers will tender his summer visit plans based on how things go for him during the spring evaluation period.
"I plan on taking my time with this, and not making a decision until late August or the start of my senior season," Southers said. "I really want to take my time with it and do it right, so when I do commit I'm not looking anywhere else."