The 19-year-old, who signed a new one-year deal with the Saddlers over the summer, will be available for the Brakes in their match against Tamworth tonight.
Butterfield joined Walsall on an initial one-year deal in June 2016 and was a key part of the club’s developmental squad as they won the Walsall Senior Cup last season.
The Bermudan teenager has settled well to life in Walsall since moving from his home country, and is looking forward to testing himself in competitive games at Leamington.