There is something special about late summer in Northern Virginia. The heat lingers into the evenings, the fireflies come out, and every weekend brings another reason to gather with neighbors and celebrate this vibrant community we call home. Whether you have lived here for years or just moved in for a new job or military assignment, the weeks from late July through August are packed with fairs, festivals, farmers markets, and family-friendly events that showcase everything that makes this region special.

I have spent over 25 years helping families put down roots in Northern Virginia, and one of the things I love most is watching newcomers discover the community events that make this area feel like home. This guide covers the biggest and best happenings across Prince William County, Loudoun, Fairfax, and beyond for the remainder of summer 2026. Let's dive in.

Loudoun County Fair: Running Now Through July 25

If you are looking for something to do this week, the 90th Annual Loudoun County Fair is currently underway at the Loudoun County Fairgrounds in Leesburg, running through Saturday, July 25. This is one of the oldest and most beloved community traditions in the region, and it offers a full slate of family entertainment including 4-H animal exhibits, carnival rides, live music, professional bull riding, a mini demolition derby, and the legendary Paul Bunyan Lumberjack Show.

The Loudoun County Fair has a wonderfully authentic, community-driven feel. It is smaller and more intimate than the massive county fairs to the south, which means less time in lines and more time enjoying the exhibits, browsing the craft tents, and watching the livestock auctions. For families with young children, the 4-H barns are a highlight — local youth showcase their cattle, sheep, goats, and poultry with a level of pride and dedication that is genuinely heartwarming.

Location: Loudoun County Fairgrounds, 17558 Dry Mill Road, Leesburg, VA
Hours: Gates open daily through July 25. Check the fair's official website for exact daily schedules.
Parking: Free on-site parking available.

Fairfax County 4-H Fair and Carnival: July 30 through August 2

The Fairfax County 4-H Fair and Carnival returns to Frying Pan Farm Park in Herndon from Thursday, July 30 through Sunday, August 2. This is a wonderful, family-oriented event with free admission and a classic county fair atmosphere. The 4-H Fair features livestock exhibits, milking demonstrations, equestrian events, and a full carnival midway with rides and games.

One of the highlights is Big Truck Night on July 31, where kids of all ages can climb into fire trucks, construction vehicles, and farm equipment. It is exactly the kind of hands-on, unforgettable experience that turns a simple summer evening into a core childhood memory. The fair also offers a wide variety of food vendors, craft booths, and live entertainment throughout the weekend.

Location: Frying Pan Farm Park, 2709 West Ox Road, Herndon, VA
Admission: Free (ride wristbands sold separately)
Hours: Vary by day; check the Fairfax County Park Authority website for the full schedule.

Prince William County Fair: July 31 through August 8

The 77th Annual Prince William County Fair is billed as the largest county fair in Virginia, and it lives up to the reputation. Spanning nine days from Friday, July 31 through Saturday, August 8 at the Prince William County Fairgrounds in Manassas, this is the summer event that thousands of families look forward to all year long.

The fair features a full midway with thrill rides and kiddie rides, a professional rodeo, demolition derby, livestock shows, home arts exhibits, monster trucks, live music, and enough fair food to keep you coming back for seconds. For a complete breakdown of everything the PWC Fair has to offer, check out my dedicated guide to the Prince William County Fair.

Location: Prince William County Fairgrounds, 10624 Dumfries Road, Manassas, VA
Hours: Gates typically open at 2:00 PM on most days, 5:00 PM on select evenings, and close around 10:00 PM.
Parking: Free on-site parking available.

Manassas Park National Night Out: August 4

National Night Out is an annual community-building campaign that brings together neighbors, police departments, and first responders for a night of connection and celebration. The City of Manassas Park hosts its National Night Out event on Tuesday, August 4 from 5:00 PM to 10:00 PM at Park Central Plaza.

This is a wonderful event for families who are new to the area and looking to meet their neighbors in a relaxed, welcoming setting. There are food trucks, kids' activities, informational booths, and the chance to meet local police officers, firefighters, and emergency personnel. It is also a great opportunity to learn about community resources, neighborhood watch programs, and how to stay connected with what is happening in your community. If you recently moved to Manassas Park, this is one event I strongly recommend putting on your calendar.

Farmers Markets Across the Region

Late summer is peak season for farmers markets in Northern Virginia, and there are excellent options every day of the week. Here are some of my favorites:

Historic Manassas Farmers Market (Saturdays, 8:00 AM to 1:00 PM) — Harris Pavilion, 9201 Center Street, Manassas. One of the largest and most vibrant markets in the region, with fresh produce, artisan breads, local honey, flowers, and prepared foods.
Manassas Park Farmers Market (Saturdays in August, 9:00 AM to 1:00 PM) — Park Central Plaza. A smaller, community-focused market with fresh seasonal produce and local crafts.
Dale City Farmers Market (Sundays in August, 8:00 AM to 1:00 PM) — 14090 Gemini Way, Dale City. A solid option for Sunday morning shopping with fresh fruits, vegetables, and baked goods.
Reston Farmers Market (Saturdays, 8:00 AM to 12:00 PM) — Lake Anne Plaza. A classic Northern Virginia market with a beautiful lakeside setting.

I always tell my clients that farmers markets are one of the best ways to get to know a new community. You will see the same faces week after week, and before long, you will feel like a local.

Free Summer Entertainment in Fairfax County

Fairfax County runs a Free Summer Entertainment Series that continues through August 29, with free live performances at parks across the county. From concert bands and jazz ensembles to theater performances and children's shows, there is something for every taste. The Music at Arrowbrook Park concert series in Herndon also runs through August 29, offering a wonderful lineup of live music in a relaxed outdoor setting.

These free events are perfect for a spontaneous summer evening. Pack a blanket, grab some takeout from a local restaurant, and enjoy a concert under the stars. It is one of those simple pleasures that makes Northern Virginia such a wonderful place to live.

Back-to-School Season: A Different Kind of Transition

As August progresses, the focus naturally shifts toward the upcoming school year. Loudoun County Public Schools start on August 17, followed by Prince William County and Fairfax County on August 24. If you are relocating to Northern Virginia this summer, the window to find a home and get settled before the first day of school is narrowing — but there is still time.

For a complete guide to the back-to-school relocation process, including school district comparisons, enrollment deadlines, and neighborhood recommendations, read my detailed Back-to-School Relocation Guide for Northern Virginia Families.

Making the Most of These Final Summer Weeks

Late summer in Northern Virginia is a season of transition. The days are still long and warm, but there is a subtle shift in the air as August arrives — a sense that the carefree rhythm of summer is giving way to the structure of fall. It is the perfect time to get out, explore your community, and make memories with the people you love.

For families who have recently moved to the area, attending a county fair or a farmers market is one of the best things you can do to feel connected to your new home. These events are where communities are built — where you run into neighbors, discover local businesses, and start to feel like you belong.

And if you are in the middle of a home search or thinking about making a move before the school year starts, I would love to help you find the right place. There is no better time to put down roots in a community than when the fairground lights are glowing and the farmers market is in full swing.

Your Late Summer 2026 Community Events Guide: Fairs, Festivals, and Family Fun Across Northern Virginia