Preparing for JFK - the night before

We made to Hagerstown at about 1pm today and checked out where the start of the race is, got checked in, went to the race registration all without any problems. Now we have to figure out what to wear tomorrow. It is supposed to be about -6c in the morning. I was planning on shorts, but that may not be an option. Otherwise it is supposed to get up to 3c, but so was today and it was frigid. We shall see in the a.m.