More than 1,500 people enjoyed a lovely fall day Oct. 27 at Randolph’s first Harvest Hoopla at Powers Farm, a community park that opened last spring on North Main Street. Among the attractions were games for youngsters, a road race, a scavenger hunt, a petting zoo, Frisbee dog shows, live music, and pony and hay rides. To the disappointment of the crowd waiting for rides on the hot air balloon, the weather kept it grounded. “I was really hoping’’ for the balloon to fly, said Marc Craig, the town’s recreation director, “but in the end I was happy just to see that the company spent so long trying, even though the chances were slim with the beginning effects of Sandy.” Craig said the event was funded by the Recreation Department and local businesses, and will be held again. “Next year, we will try to bring more vendors in to sell food and crafts, and of course we hope for perfect weather again,” he said.