Honey I don't think that you should be at all concerned on what you weigh. I know you said you were just wondering, but trust me, you'll have plenty of time to worry about things like this when you're older... Much older. Right now just enjoy being a beautiful little girl and have fun and do good in school. Try to eat healthier foods and not just junk foods and fast foods. My oldest daughter will be 10 in a few months and I will hopefully get her to continue loving herself just the way she is... As should you!!!
On average, a 10 year old would weigh between 77 - 99 pounds. It is however prudent that the body height be consistent with both the age and the weight. Try out http://www.nhlbisupport.com/bmi/ for easy calculations of the Body Mass Index.