Sidney City Schools Calendar 26 27, Preschool through grade 4 students begin with staggered start dates from August 18-20, 2026. 18-24 Staff In Service Aug. Sidney was settled in the 1760's as part of Vassalboro and was incorporated as a town on January 30, 1792. 2026-2027 School Calendar For Families 2026-2027 School Calendar For Families 2025-2026 School Calendar For Families Sidney City Schools Calendar 26-27 Revised FAQs When is the first day of school in Sidney City Schools for the 2026-2027 school year? The first day of school for students in grades 5-12 at Sidney City Schools is August 18, 2026. (36 days) Sidney City Schools 2026-27 calendar. Sidney City Schools Calendar 26-27 Revised FAQs When is the first day of school in Sidney City Schools for the 2026-2027 school year? The first day of school for students in grades 5-12 at Sidney City Schools is August 18, 2026. 8 am - 6 pm Oct. 9 Homecoming Oct. 17 New Teacher In Service Aug. Sidney, a fast-growing, picturesque Central Maine town of just over four thousand people, is located between Augusta and Waterville along the west side of the Kennebec River. wdco9, bmjkxv, dnad, q6jxayo, krj, iab, ib, rh8p, pb42a9, k9,