I was wondering what the average weight would be for a 16 year old female?

It depends: 95 to 185 lbs...Depending on how tall you are? See: http://www.Livestrong.Com/article/374611-the-average-weight-height-for-a-16-year-old/ for one resource on height-for-weight for 16yo females.

Depends on..: Since 16 year olds are not entirely to adult full growth, an "ideal weight" depends on several differnt factors, including race, height, parental stature, pubertal development, etc. Worry more about an ideal bmi (body mass index), that plot out weight based on height and sex. See the cdc site or other on-line sites to figure and interpret body mass index.