I think we'll be good for our scrimmage and party, but do bring warm clothing (long sleeved shirts, a rain jacket) and be ready to get muddy (a towel might be a good idea too!).
Update 6:20pm: Weather is moving from NW to SE and looks decent on the sat maps and the eyeballs in the NW. So Tim and I will be there with the ice cream treats! We'll move 1st base, it's pretty wet.