There may be some wiggle room to get an offer at the higher end of the range, but it would be very doubtful that any candidate would get more than the high point because that would require the job to be re-evaluated. However, the hiring salary range may not be the same as the actual salary range for employees in that position. So, if you were hired at the top end of the scale, there may be room to get increases in the future.
When to Mention Salary
If the salary isn't want you expected for the position, I wouldn't recommend bringing it up as an issue until you have a firm job offer. Rather, you could say that your salary requirements are flexible, and not say anything about the range being low, because the company will probably have plenty of other candidates if you're not interested and because the hiring manager mostly likely knows they are stuck with the range and they will need to find someone who will accept it.
That said, when it comes to the point where you have a job offer you can definitely mention that you have been making a higher rate for equivalent work and ask if there is any possibility of flexibility in the salary - either now or in the future.
Salary Articles and Advice