Boro have yet to break their duck this season while County sit just one point better off after three matches.
"They will be as low on confidence as you can argue our camp will be," Westley told the club website.
"They'll be as determined as our camp will be to get their season up and running as well, so there will be two very similar mindsets going into this game.
"From our point of view it's probably a much more important one in the sense we've got to break our duck and they haven't. They broke their's with a draw last weekend. So there's more onus on us from our point of view to get ourselves up and running."