DISCLAIMER: Take everything you read on CC and other college forums with a grain of salt. Every year is different and so is every applicant. The outcomes of other applicants with similar stats will not give you a clear cut answer/feeling about your chances.
That being said…
No early decision. You simply apply within the first notification period (or second if you’re find a reason to wait), guaranteeing you receive a decision of admit, deny, or postpone by the end of January.
Your stats put you in the middle of the pack. Have you considered retaking the ACT? 27 is good, but a 28 or 29+ would really help you out. Similarly, keep working hard senior year, as you will have to submit your first semester/trimester grades to the admissions office if you are postponed or accepted. If they see you slipping, it will not help your case. Furthermore, with a GPA like yours, admissions likes to see a upward trend. This means your lowest grades should be from either freshman or sophomore year, with increases as you go, especially as you begin taking more rigorous courses. Along the lines of academics, I’d lose the notion of “top public school”. Admissions doesn’t actually care what school you come from, as they understand that every school is different regarding courses and ECs available. The prestige of your school will not land you a spot above an applicant from a “mediocre” school.
Now, to somewhat contradict what I just mentioned, your grades and ACT/SAT scores will not be what gets you accepted. You need to write VERY STRONG essays that have been reviewed by trusted peers. I had my essays critiqued by two teachers whom I trust to give me honest feedback and reliable suggestions on how to improve. Additionally, you will need at least one letter of recommendation. However, I suggest you get two to be safe (from teachers who have known you for multiple years, and know you as more than just another student. Such as your yearbook advisor or soccer teacher). Likewise, ECs are fairly important on an application as well. (Not AS important as the things I listed previously, but they should not be lacking or neglected.) You have some good activities, but try building up your ECs this year too. ONLY JOIN SOMETHING YOU LIKE/WANT TO THOUGH. Personally, there was a new volunteer club started at my school during my senior year and I joined because I like volunteering and saw an opportunity to become involved with a new side of my community and school. I ended up taking a leadership role in the club and adding it to my application, which I’m sure helped my case.
I was accepted after being postponed with a 28 ACT and 3.7 cumulative GPA at the end of my senior year (STRONG UPWARD TREND). I made a mistake prioritizing sports my freshman year and let my grades slip. Fortunately, my academic performance as an upperclassman showed admissions officers I have matured and can handle the rigor of UW.
[TLDR] You came here asking for chances so here are my two cents: I think you are a possible postpone with a good shot at acceptance in March. (Per my note at the beginning of this post, don’t let this discourage you, there is still a chance you can be accepted first round.) My advice as someone who was postponed is to continue working hard. Very cliché, but I cannot speak enough about this. After I found out I was postponed I wrote the admissions office a single page letter (sweet and simple) telling them about my passion for UW, how I plan to use my time on campus/how I will fit in on campus, and how I’ve been growing during my senior year. I suggested this to a friend who was also postponed and we both received acceptance letters in the spring. Fellow postponed classmates who did not send a letter of continued interest or a strong application in the first place are currently moving into dorms at their second or third choice schools…
In sum:
-KEEP WORKING HARD
-Write killer essays that have been reviewed and critiqued (edited a few times, probably)
-Get strong recommendations
-Don’t rush through your application
-Go on a tour if you have not already and do your research about UW so you can be well-versed in your essays
I wish you the best of luck this year. Keep your head held high and HAVE FUN as a high school senior. Where you go to school/get accepted does NOT define who you are as a person. I spent seven months of my senior year stressing out over college admissions (to UW specifically) and I regret letting it get to me that much. I don’t regret the amount of effort and time I put into my connections and communications with UW, though. I’m finally all packed and ready to head off to the UW in six days and haven’t felt happier. If you need any advice or help or have any questions feel free to direct message me. Also, sorry this is so extremely long.