Can I get in to a good prep school with a mediocre GPA?

I went to a very elite prep school for middle school, I graduated with a 3.67 GPA. I'm now a 9th grader (I've gotten straight A's this year) at a public school. Since I took the SSAT on the 9th I don't know my scores yet. Do I stand a chance at getting into any of the schools i applied to(Milton, Thatcher, Concord, Hotchkiss, and Knox)? I'm from a rural state, have TONS of extracurricular activity's, I'm legacy at Concord, but I need financial aid.