Unless otherwise specified, dress up not down.
This means that you should show up to your interview in business professional attire.
One of the best tips is to dress one step above the job attire. For example, if you apply for a sales company and the employee attire is a polo and dress pants, take it up a notch in the interview with a button up shirt. Or if you would be wearing jeans and a t-shirt for a construction job, dress it up with a nicer shirt.
Take a look at this article for more tips and tricks!