I'll be there in the morning as well.
It should be a cold start, but it looks like it'll warm up fairly quickly and should be up in the mid/upper 50's by the end of the ride.
Only thing though is that I was a bit confused about the starting location until I read the email about half a dozen times while looking through Google Earth. The map he references (from last year) shows the start at the high school south of 1375, but the email says at the intermediate school north of 1375. I'll go by the email since it should be correct, he kept talking about the 'junior high school across the tracks'. I'm assuming that the set of buildings with a football field near it that's about a 1/4 mile north and a bit east of the intermediate school? Guess I'll find out in the morning.