Well, me myself think that he should weigh 65 lbs or less
My daughter is 5ft2 and 7 she weighs 79lbs
Well, my 7 year old is 4 foot 11 inches tall and he weighs 80lbs. I was told my son was overweight by someone, but since he is so tall, it all averages out.
My son is 7 in march and he is also 4ft 4inches and he weighs 64lbs or 4stone 8lbs he is not fat at all he is a very solid boy and very broad. According to other websites he is 5inches taller than "Average" and about 10lbs over weight. His BMI says he is over weight but he eats well and exercises regular so I am not concerned I am very proud of his size. I hope this helps X