Substandard GPA

<p>To start things off, I have a 3.48 GPA. (All AP/Honors)
I just checked my Feb. 7th ACT results online. I got a 34 composite, which I'm content with. (previous tests: 29,33)
What I'm wondering is if I'd still be considered for higher tier universities. I'm really interested in Washington University, however I'm afraid that my apathetic GPA will prevent me from going there. I'm halfway through my junior year, and I'm going to make a serious attempt at the rest of this year/senior year.
However, basing it off my current GPA, what do you think?
Ethnicity:white, gender: male
I participate in the following extracurricular activities:
Varsity Cross Country/Track and...Ping Pong club</p>