Wisconsin’s wine grape harvest is underway, and at Bailey’s Run Vineyard in New Glarus, manager Aimee Arrigoni is watching the weather closely. She oversees six acres and 3,000 vines. The early Edelweiss has already been picked, but later-ripening reds are still waiting on September warmth. Recent swings between hot and unusually cool temperatures have stalled sugar levels, raising the risk of fruit damage from birds, bees, and disease. Despite the challenges, Arrigoni says yields are strong and quality is high, with promising reds like Marquette and Petite Pearl set for harvest later this month into early October.