How hard is it to get into a Physician Assistant program when your GPA is just at the minimum?

I am a Junior in college and my Science GPA isn't amazing by any means. Its actually on the low end of the requirement scale and thus my overall GPA isnt the best but its still better than my science GPA. I really really want to get into PA school and I was just curious how lenient the minimums are and how competetive most programs are. I understand it differs for different schools but in general what should I aim for in order for acceptance into the program?