It's hard to predict, especially with the little guys. A quarter pound is a big increase.
Dink is 10 months old tomorrow. He was 3.4 all summer. In fact, I know he still weighed that in October because he was weighed when he was neutered in October. I was pretty sure that he would not make 4 lbs.,but we weighed him this week and he was 3.12! I don't know if it's the change from puppy chow to the new food or just his growth pattern.
He's nice and sturdy, and I can still carry him with one hand.
