Funny you should ask because, I guess, right around the time we put in our offer, rates decided to start floating upward. Swell.
Anyway, the going rate at the moment seems to be right around 4 3/8 for a 30-year conventional. You can get 4 1/4, but the costs start to go up fairly dramatically.
Based on my limited knowledge of these things and the sudden shoddy interweb research I’ve forced upon myself, it looks like they might not start moving down again until November 3rd.