Ormerod has two weeks remaining on his current agreement, but with James Beattie ruled out for up to six weeks with a broken toe, The Saints are short on strikers.
"It was always the intention to bring Brett back after a month," head coach Steve Wigley told the club's website. "We just wanted him to get first-team match practice.
"But with James out injured, it makes sense to get Brett back and hopefully he will feel the benefit of playing regularly."
"It was always the intention to bring Brett back after a month," head coach Steve Wigley told the club's website. "We just wanted him to get first-team match practice.
"But with James out injured, it makes sense to get Brett back and hopefully he will feel the benefit of playing regularly."