Weale has put in a string of solid displays to help the Foxes to seventh in the Championship, but the former Yeovil shot-stopper is confident he can continue to improve.
He told the club's official website: "I have been relatively pleased. It is a progression and I need to keep progressing and improving and there is a long way to go.
"I have come here to establish myself. I haven't done that yet and hopefully in two or three years time I will have achieved that, but there is a long way to go.
"There is always room for improvement in every game you play. You chat to the goalkeeping coach about that and you have to take things out of every game.
"If you remain focused and keep working hard then success will come."