I can't say for sure, but I would expect pretty decent grass. It's possible it could be dormant, but still thick, but I rather expect they will be irrigated fields in reasonable condition. It's even possible to have rain that time of year, and it would be wet! It's also very possible that it will be a bit breezy, so spectators might want some protection from that! Temperature could be anywhere from 55 to 75. You will want a hat, if there is sun! And some stylish shades!
