The city’s outdoor farmers market begins its third season next Sunday. Every Sunday through Oct. 20, the market will be open from 10 a.m. to 2 p.m. at the city’s Spence Farm, 41 Wyman St. Run by the city’s Agricultural Committee, the market offers freshly grown fruits and vegetables from local farms as well as grass-fed beef, fresh seafood, cheese, baked goods, and handmade items from artisans. Twenty to 30 vendors will take part each week. The city also has a winter farmers market, which concluded its second season on May 19. For more information, go to www.woburnfarmersmarket.com.