I'm trying to figure out how to style it up on course for the marathon. Or rather, not freeze or oversweat. It *looks* to this newb like we'll start about 50 degrees, and it'll be low 40s up top, and if I make the turn and head down in good shape, it'll gradually get warmer until I finish about 80 degrees. Does that sound about right? Sounds like T-shirt weather for me, with a space blanket or garbage bag in the pocket in case of bad weather or stoppage.