 Register now at WDEL.com to be a part of this community-wide educational fun program where kids get the opportunity to learn valuable life skills through real-life experience. Lemonade Day Wilmington is sponsored in part by Allura Bath & Kitchen and Urban Air Christiana. Who's ready for some lemonade? Check the yellow light and the Ad Council. The sky's set to light up tonight to celebrate the 4th, but not exactly as it has in the past.