Dewey Decibel Concert Series — North Sea Gas, one of Scotland's most popular folk bands, performs with guitar, mandolin, fiddle, harmonica, bodhrans and more. 7:30-9:30 p.m., Saturday. Williamsburg Library Theatre, 515 Scotland St. $12-$16, call 259-4070.
Yorktown Market Days Fall Festival — In addition to the usual array of fresh food, flowers, art and entertainment, the fall festival includes hayrides, face painting, pumpkins and children's activities. 9 a.m.-3 p.m., Saturday. Riverwalk Landing, Yorktown. Free.
Port Warwick Art and Sculpture Festival — 12th annual event features world-class art, live music and food. More than 80 artists expected. 10 a.m.-6 p.m., Saturday; 10 a.m.-5 p.m., Sunday. 3100 William Styron Square, Newport News. Free.
Fox Wire Farm Alpaca-Fest — Weather permitting, there will be alpacas on hand along with local knitters, artisans, crafts people and farmers showcasing products and services. Saturday-Monday. 8105 Richmond Road, Toano. Call 218-4520 for more information.
An Appalachian Sampler — Enjoy music of Appalachian America from its founding to today arranged for classical guitar and hammer dulcimer. 4:30-5:30 p.m., Saturday. Art Museums of Colonial Williamsburg, 326 W. Francis St. $3-$5, plus museum admission.
Capital Color Ride — Pedal round trip from Chickahominy Riverfront Park to the "color pit stop" of choice. Distances range from one to 14 miles. 9 a.m.-1 p.m., Saturday. 1350 John Tyler Highway. $10, register at jamescitycountyva.gov (code: 410400-A).
Rhythms on the Riverwalk — The closing concert in this outdoor series features Doug Dunn and the Steel River Band. 6:30-8:30 p.m., Friday. Riverwalk Landing, Yorktown. Free.
Williamsburg Fire Department Open House — Enjoy food, fun and games while learning about fire safety and community resources. 10 a.m.-2 p.m., Saturday. 400 N. Boundary St. Free.
Children's Consignment Sale — This semi-annual sale offers new and gently used seasonal children's clothing for expectant parents and children (newborn to teen), furniture, strollers, toys, games, bikes and more. 11 a.m.-7 p.m., Friday; 8 a.m.-12 p.m., Saturday. King of Glory Lutheran Church, 4897 Longhill Road.
Guitar and Flute Recital — Duo Thalassa performs an internationally influence program, with Wayla Chambo on flute and Todd Holcomb on guitar. 8-9 p.m., Saturday. Bruton Parish, 201 Duke of Gloucester St. Free.