The midfielder was an unused substitute for last weekend's 3-1 win over Burton having missed the previous three games with a thigh injury.
Weston subsequently got 90 valuable minutes under his belt in Tuesday's reserve defeat at Fulham meaning that, barring any ill-effects, he will be available to start at Kingsmeadow.
However, the Gills remain without defenders Barry Fuller (knee) and Joe Martin (calf), midfielders Danny Spiller (ankle) and Jack Payne (knee) as well as striker Adam Birchall (knee).
There was some positive news this week, however, as it emerged Fuller will not need surgery having aggravated his troublesome knee complaint.
Gills striker Danny Kedwell, who has found the net four times so far this season, comes up against his former employers for the first time since completing a summer switch to Priestfield.