I mentioned it at the last WCCC, some of the racers indicated they might like to attend.
The gates will open at 4pm, racing till 10pm. Living in the area I know the tempretures will drop fast after sun down. If you can hang in until about 8pm, you can expect reasonable tempretures, (low 80's to high 70's), after sun down. Good running weather. Also the wind usually dies down after 7 - 8pm.