I have a job interview next week. Do I tell them about my wedding in October or do I wait?

I live in NJ right now and am looking for a job in Pittsburgh because that's where my fiance and I will be living after we get married in 6 months. I have a job interview next Monday, and I'm wondering if I should tell them then that I would need time off for the wedding (a few weeks, because it's in NJ, plus the honeymoon). My fiance says I shouldn't say anything until after they've made an offer and I've accepted. While I think this is probably smarter from an employment standpoint, I feel like it's better to tell them up front and be honest, that way they know it's coming and I'm not ticking them off a short time after starting the job. Thoughts? Thanks!