NASA has a handy SpotTheStation website for space station fans--enter your country, state, city and NASA returns with a calendar of times when you have a good chance to see it pass among the fixed stars. You'll get the dates and times, the point of the compass where you should start looking, and the length of time the station will be passing by. All you need apart from that is a cloud-dispersing ray gun and you're set. It reminds me of checking the newspaper for the times we could see Echo 1 pass over St. Louis when I was a kid.