Kirk have you got your M3W grab bag packed with ear plugs, flying helmet, goggles, camera etc? You don't want to forget anything on the day. Dan's forecast looks good to me but put your waterproofs in anyhow.
When I collected mine on 09/10/13 it was sunny, I drove 30 miles & stopped for lunch (hotel has burned down since then but its not my fault). When I moved off again it started to drizzle & in another 30 miles was raining hard but I was still smiling.
Tim