This weekend in Southern Illinois, IL

Car lovers can explore a showcase of classic beauties and sleek modern rides at the fairgrounds. Activities include vehicle registration, judging, and awards, plus a 50/50 raffle. Show car entry is $10, and the first 50 registered receive free dash plaques. Music will be provided by DJ Big Elvis. Whether you favor vintage icons or the latest models, there is plenty to admire and enjoy.

The outdoor Saturday yoga series at Vine Street Market returns with a free class set on the lawn. Practice beside the market, with signs guiding you to the grassy area. Bring a mat, breathe in the fresh air, and move through a flow that rises with the gentle buzz of the market. Participation is free. Reserve a spot online or through the Moonbird Yoga app by selecting the Free Area Yoga option under the O'Fallon location, or sign up upon arrival.

Join in for the annual Watermelon Festival at the Vine Street Market. Enjoy fresh watermelon from local farmers, special themed items from artisans and downtown businesses, and a watermelon eating contest. The festivities run in the morning with activities from 8:00 AM to 12:00 PM.

Join the fun C pace group ride, averaging 14 to 16 mph, for a 20 to 35 mile route typically on the bike trails north of O’Fallon. An annual ride waiver is required, so if it’s your first time, arrive a few minutes early to check in with staff to complete the waiver and get your 2024 sticker. After the ride, stop by the shop for refreshments. The ride follows a “no drop” approach, with the group regrouping at defined points as directed by the ride leader.

Bring the whole family for a weekend of LEGO creativity at the Ultimate Brick Show at The Pavilion. You’ll be able to check out impressive brick-built displays from builders around the country, join in interactive activities like build challenges and a community LEGO mosaic, and explore dedicated play areas for younger kids. There’s also a vendor marketplace with LEGO sets, retired collections, minifigures, and special brick-building finds, plus opportunities to meet expert builders and special guests. The event runs across Saturday and Sunday with plenty of hands-on fun throughout.

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Enjoy music with your coffee during brunch at June's Breakfast + Patio, with a seasonal menu available.

Get ready for the second annual pickle fest, growing from last year's success with plans to make it even bigger and better. Attendees can expect food, a variety of vendors, music, and plenty of games and activities. More details will be shared as the event gets closer.

A wide-ranging set of hit songs spans the decades, with a playlist that pays tribute to Tom Petty, the Beatles, John Prine, Johnny Cash, Sublime, RHCP, Jim Croce, STP, The Cure, Jason Isbell, Elvis, and more.

Shawn Mayer is performing at Da-Nite Tavern in Murphysboro. The show starts at 9:00 PM.

Teams of four compete in a best ball scramble, with snacks and drinks provided along with lunch. The day features raffles and auctions, payouts across three flights, and on-course challenges including closest to the pin on every par 3, a longest drive, and a putting contest. A prize awaits anyone who sinks a hole in one. It is a friendly day of competition and camaraderie that benefits the Autism Society of Southern Illinois.

Join the Autism Golf Scramble 2026, a fundraiser for the Autism Society of Southern Illinois. It is an in-person golf scramble hosted by Carbondale Eagles, with food and beverages included plus on-course beverages. The goal is to raise support for therapeutic services, education, and sensory-friendly programs for families across Southern Illinois.

On select Sundays, enjoy live summer tunes from Parallel Play on the deck at the Branch Cafe and Market. Share the moment with a friend, sip a refreshing seasonal drink, and cool off as the band sets a relaxed vibe.

Savor BBQ alongside a live music performance in a casual, welcoming setting. Good food and live tunes come together for a straightforward, enjoyable experience.

The Williamson County Fair Children’s Pageant invites participants from babies through teens, with divisions for Baby Mr. or Miss at birth to 5 months and 6 to 11 months, Toddler Mr. or Miss for ages 1 to 2, Tiny Mr. or Miss for ages 3 to 4, Little Mr. for ages 5 to 7, Prince or Princess for ages 8 to 9, and Teen Miss for ages 13 to 15. The entry fee is $30 per child. The entry also includes a photogenic category, and a 4x6 photo should be submitted with the entry form. Mailed entries are accepted, and checks should be made payable to the Williamson County Fair. Entry fees may also be sent via Venmo to @williamsoncountyillinoisfair, labeled with Children’s Pageant Fee and the child’s name. For questions, contact Cassie Young at 618-964-4987. For Little, Jr. Miss and Miss divisions in ages 5 to 7, 10 to 12, and 16 to 21, contact Tyra Hill at 618-925-1860.