IMPORTANT: Due to Bond construction/remodel work over the summer, Oak Grove will be totally closed beginning Monday, June 18th. The school office will. A Trio of Willowside Students. Willowside students on the 1st day of school. Oak Grove Student. Oak Grove student enjoying the new lunch program in the district. Oak Grove School District 68 is a single-school K-8 school district in the central Lake County village of Green Oaks;…