Fairfax County is offering a packed weekend of events from Friday, Sept. 25 through Sunday, Sept. 27, 2026, headlined by Hispanic Heritage Month celebrations, the annual Mosaic Fall Fest and waived pet adoption fees.
Libraries across the county will mark Hispanic Heritage Month with events including a live mariachi performance by Grupo Fénix at multiple branches, Baile Folklórico at the City of Fairfax Regional Library and a chance to create your own alebrije at Martha Washington Library in Alexandria. Residents can also take part in the Library's Hispanic Heritage Month Reading Adventure.
The Mosaic Fall Fest runs Saturday and Sunday from 11 a.m. to 6 p.m. in the Mosaic District, with more than 90 handmade and vintage vendors, special performances and activities for the whole family.
All pet adoption fees will be waived Friday through Sunday at Animal Services' Lorton Campus. "We're thrilled to partner with the BISSELL Pet Foundation again for this tail-wagging event," the county said.
Friday's schedule includes a Campfire Night Hike on nocturnal predators at Ellanor C. Lawrence Park in Chantilly, Fall Book Sales at the Reston Regional, George Mason Regional and Burke Centre library branches, Child and Me Yoga at Martha Washington Library and Campfire Fridays at Hidden Pond Nature Center in Springfield.
Saturday brings Bug Fest at Lake Accotink Park in Springfield, National Public Lands Day service opportunities, Harvest Happenings at the McLean Community Center, a Nature Walk with a Police Officer at Hidden Oaks Nature Center, a Fall Tea Party at Colvin Run Mill, Backyard Beekeeping at Tysons-Pimmit Regional Library, Chuseok Paper Crafts at Thomas Jefferson Library and Folklore and Campfire at Colvin Run Mill.
Sunday's events include Practical Plants foraging at Riverbend Park, Junior Forest Foragers, Grit and Grain on African American millers at Colvin Run Mill, Monarch Tag and Tea at Hidden Oaks Nature Center and Constellation Cards at Pohick Regional Library.
Looking ahead, the Farm Harvest Fest and Carnival is set for Friday, Oct. 16 through Sunday, Oct. 18 at Frying Pan Farm Park, and Goblin Golf returns to the Burke Lake Park mini-golf course on Saturday, Oct. 3 and Sunday, Oct. 4.
Weather and other reasons may impact the events listed above, and residents are advised to check the links for each event's status.