What's the interview for exactly?
Do you have black/dress pants and a smart shirt at least? (whoops, I'm assuming yes after rereading your post lol)
A lot of places are more casual now so you don't need to go into an interview dolled up to the nines, but it can be dependent on the sector and role you're interviewing for. My last couple of interviews I literally just wore some black pants and a smart ****, and I got the jobs.
At worst don't you have any family or friends you could just borrow a tie from?