Union City, Tenn.–Kids and adults having fun at the Obion County Fair, which opened Friday. Entry Day for Junior & Open Field Crops is today, Saturday, August 17th from 9 a.m. until noon in the Commercial Exhibits Building. Rodeo tonight at 7 pm. Admission is $5. Friday & Saturday Armbands both weekends are $25. Monday, Wednesday Armbands are $20. Tuesday & Thursday $20 gate admission includes rides.