The weather forecast is for sunny with some clouds tomorrow!  No rain expected. It will still be cool for the earlier racers though. I suggest bringing a base layer and arm warmers in addition to a warmup vest or wind breaker.   You don’t have to use them if you don’t need them.  It may be a bit sloppy too. I will bring some materials to make some splash fenders. They are nice for keeping mud from flying off your front tire and into your eyes. Ask me if you want to make one.