Even though it is listed above that the median unweighted GPA of admitted students is 3.91, the median of enrolled students will be a little lower.That also means that 1/2 are above that number and 1/2 are below. I would think a weighted of 3.7 would make you a viable candidate. Your chances would increase significantly if you were to apply early decision.
Emory has a holistic process, which means everything counts. They will look at rigor of courses and want you to take a representative number of AP courses in relation to what your school offers. As such, weighted GPA isn’t as important as a combination of unweighted GPA and course rigor. If you do well on AP exams, that counts too. So do standardized tests, extracurriculars (quality as much as quantity), how you spend your summers, part time jobs, sports, and community service.
When you get to October of your senior year, then see if you have a reasonable shot. If you do and Emory is still a dream school or one of your top choices, then consider early decision. For now, do your best and revisit your few choices next winter or spring when you start visiting schools.