10 Month Old Kitten Weight . For a female kitten, the weight will be toward the lower end and for a male kitten, the weight will show higher development. If you notice the kitten's mother trying to wean the kitten, for example not letting it nurse, then the kitten is probably between one and one and a half months old. Weighing — Kitten Lady from www.kittenlady.org One week in this world, darling, denby, corduroy, tweed, and wembley are becoming more aware of their surroundings. Browse through the content she uploaded herself on her verified profile. 6 month to 1 year old kitten.