Neither pouring rain nor limited grill space should prevent you from grilling ears of corn. A traditional outdoor grill cooks food with a single, direct heat source. Grilling corn in a conventional oven requires refocusing the heat around the entire ear. The sweeter varieties of corn grill best because the sweetness offsets the mild, smoky flavor from grilling. Not only does grilling corn in your oven let you enjoy barbecued meals year-round, but it also lets you save the outdoor grill space for meat and other vegetables during the summer months.