The 28-year-old arrives at the Towbar Express Stadium after departing Spennymoor Town earlier this week.
After progressing through the youth ranks at Middlesbrough, McGinley signed his first professional contract at the Riverside Stadium in July 2015.
Shortly after making his debut for Middlesbrough, McGinley joined Forest Green Rovers on loan until January 2019, and in that month McGinley signed permanently for the South West club after proving himself a key part of the team during his initial loan.
In June 2020, Motherwell announced the signing of McGinley on a two-year deal after his contract with Forest Green Rovers had expired. McGinley extended his contract with Motherwell until the summer of 2024 but departed in January 2024.
In September 2023 McGinley joined Scottish Championship side Partick Thistle on loan until January before he moved back to England signing for Spennymoor Town in July last year.
On McGinley's arrival manager Gary Liddle said: "I'm pleased to be able to bring someone of Nathan's quality into the squad at this stage of the season.
"He's played at high levels of the game in this country and in Scotland so offers great experience at a time when it's needed.
"We can't wait to work with Nathan."
Photo Credit: Spennymoor Town Football Club