FairfaxGreat Falls
Halloween on the Great Falls green, with a dog parade first
The Great Falls Halloween Spooktacular fills the Village Centre Green: a dog parade and costume contest from 3 to 4 pm (sign in at the gazebo at 3), then trick-or-treating from 5 to 7 pm, with no pets, and a haunted house built by Scout Troop 55. Free, rain or shine.
Sat Oct 31 · Great Falls Foundation
FairfaxMcLean
Trunk-or-treat and a festival of frights at McLean's Old Firehouse
Live music, games, contests, food and candy at The Old Firehouse, 1440 Chain Bridge Road, 5 to 8 pm. Free; come in costume. Children under 10 need an adult with them.
Sat Oct 31 · McLean Community Center
City of Manassas
Fall-O-Ween on the Manassas Museum lawn
A kids' costume parade and contest, a pet costume parade, and a fall market with treats and crafts on the Manassas Museum lawn, 9101 Prince William Street, 10 am to 3 pm. Free, pet friendly, rain or shine.
Sat Oct 31 · Virginia Tourism
Prince WilliamWoodbridge
Free indoor trick-or-treat at Potomac Mills
Store-to-store trick-or-treating at shops with a pumpkin sticker in the window, and Halloween characters for photos in Grand Court, 1 to 3 pm, at Potomac Mills, 2700 Potomac Mills Circle. Free.
Sat Oct 31 · Potomac Local
ArlingtonArlington
W-L and Yorktown play for the county title on Halloween
Washington-Liberty (6-2) hosts Yorktown (5-4) at 1 pm in Arlington's high school football rivalry. The winner is the outright county champion and stays in the race for the Liberty District title. Yorktown won last year's meeting in overtime.
Sat Oct 31 · ARLnow
LoudounLeesburg
The first Leesburg Pumpkin Smash
Loudoun County's nutrition educators host the first Leesburg Pumpkin Smash at Tuscarora Creek Park, 425 Solitude Court SE, 11 am to 2 pm. Make pumpkin seed trail mix and take home tips for cooking edible gourds.
Sun Nov 1 · Loudoun County