Things to Do in Lehigh Valley This September
As the summer comes to a close, September brings crisp air and a fresh beginning in Lehigh Valley.
Be sure to mark your calendars for all of these events taking place this month! From weekly farmers markets, to blooming sunflower fields, movies at the drive-in, IronPigs baseball games, and much more. Get in the fall mood by visiting local pick-your-own farms to stock up on all the fresh fruits and vegetables!
Get the full calendar of Discover Lehigh Valley's events. While you're out exploring, be sure to share your fun and tag your photos on Instagram using #lehighvalleypa.
The Great Allentown Fair 2026
September 2-7, 2026
302 N. 17th St. Allentown, PA 18104
Celebrate the unofficial end of summer at the Great Allentown Fair, where agriculture, entertainment, and family fun come together for an exciting annual tradition. Enjoy thrilling carnival rides and games, indulge in delicious fair food, and catch live concerts and grandstand events throughout your visit. From livestock competitions to demolition derbies and hands-on experiences, there's something for all ages to enjoy at the fair.
Nerd Nite Lehigh Valley: Mind Over Monet
September 4, 2026
Da Vinci Science Center at PPL Pavilion, 815 W. Hamilton St., Allentown, PA 18101
Calling all curious minds! Nerd Nite at Da Vinci Science Center features an evening of color theory, floating paint, live marbling, and a DJ set to help say goodbye to the Impressionists Immersive Exhibition. Grab a drink and a snack from the cash bar, settle in, and get ready for an evening of entertaining presentations, free caricatures, dancing with DJ Romeo G, and more!
Fall on the Farm
September 5 through mid-November, 2026
Grim's Orchard & Family Farms, 9875 Schantz Rd., Breinigsville, PA 18031
Spend a whole day at Grim’s Orchard & Family Farms finding your way through their four-acre corn maze, picking your own pumpkins or apples, munching on delicious caramel apples or cider donuts, and so much more. Complete your trip with a hayride through the beautiful countryside! Just making a quick stop? On Saturdays and Sundays, no admission package is needed to shop for pumpkins, gourds, apple cider donuts, slushies, kettle corn, caramel apples, pies, and more. You can also visit the Scarecrow Cafe for food and hard cider. An admission package is only required if you’d like to explore the farm.
In Tandem: The Salacious Sins of Sister Cuthberta & Sheep!
September 11, 2026
514 N 19th St. Allentown, PA 18104
Head to Civic Theatre of Allentown for In Tandem, beginning at 7:30 p.m., featuring two imaginative one-act plays: Salacious Sins of Sister Cuthberta and SHEEP!. Enjoy an evening of dark humor, quirky storytelling and unforgettable performances on the intimate Theatre514 stage.
Brew at the Zoo
September 12, 2026
Lehigh Valley Zoo, 5150 Game Preserve Rd., Schnecksville, PA 18078
Head to the Lehigh Valley Zoo for their annual Brew at the Zoo event! Sip and sample over 40 craft beers, ciders, and seltzers from various stations as you make your way through the zoo. Enjoy live music performances as well as the exclusive, after-hours opportunity to mingle around the grounds with your favorite animals.
Annual Lehigh Valley Polo
September 13, 2026
Braden Airpark, 3800 Sullivan Trail, Easton, PA 18040
Experience a polo match right here in Lehigh Valley! Equi-librium hosts their Fourth Annual Lehigh Valley Polo match to support horse-related therapies for individuals with special needs. Watch an exhibition polo match, stomp the divots at halftime, tailgate, and enjoy delicious food all while supporting a great cause.
East On Fest
September 18, 2026
Centre Square, Easton, PA 18042
Experience downtown Easton in a whole new light at East On Fest, the Lehigh Valley's first large-scale immersive arts and projection mapping festival. From 7:30–11:00 p.m., Centre Square and surrounding streets transform into a free, walkable outdoor gallery featuring breathtaking light installations, large-scale projections on historic buildings and interactive art created by regional, national and international artists.
Dorney Park Halloween Haunt & Tricks and Treats
September 18 through October 31, 2026
Dorney Park, 4000 Dorney Park Rd., Allentown, PA 18104
A season of spooks kicks off at Dorney Park & Wildwater Kingdom! On select nights in September and October, the park is transformed into a land of HAUNTs, ghouls, and goblins hiding around every corner. Make your way through a number of haunted mazes in between rides on the park’s most treasured attractions. If haunts aren’t for you, check out the Tricks and Treats during daytime hours featuring the PEANUTS gang. Perfect for little ones, daytime events include trick-or-treating, interactive shows, and more.
Latin Festival Easton
September 20, 2026
Larry Holmes Dr. Easton, PA 18042
Celebrate the vibrant culture, music and flavors of Latin America at the free, family-friendly Latin Festival Easton in Downtown Easton's Riverside Park. Enjoy live entertainment, authentic cuisine, cultural performances and local vendors while experiencing a day of community, connection and celebration.
Wine & Dine
September 20, 2026
1500 Hope Road, Easton, PA 18045
Enjoy an unforgettable evening with Wildlands Conservancy at Wine & Dine, held at The Barn at St. Luke's Anderson Campus Conference Center from 4–7 p.m. This farm-to-table dinner features a chef-crafted, locally sourced meal, live music and a beautiful outdoor setting, all while supporting Wildlands Conservancy's mission to protect and restore the Lehigh Valley's natural spaces. Advance reservations are required, so be sure to reserve your spot before this unique event sells out.
Shankweiler's Night Market
September 25, 2026
Shankweiler's Drive-In Theatre, 4540 Shankweiler Rd, Orefield, PA 18069
Shankweiler’s Drive-In is bringing something new to the screen with its first annual Night Market! This free event celebrates gothic style, steampunk flair, and curious oddities, complete with vintage films, seasonal treats, and classic drive-in favorites. Vendors with gothic, vintage, or delightfully strange creations are invited to join in the experience.
Celtic Classic Highland Games & Festival
September 25-27, 2026
Colonial Industrial Quarter, Conestoga St., Bethlehem, PA 18018
‘Tis the season to break out your kilts for the Celtic Classic Highland Games & Festival. This annual festival celebrates the region’s Celtic culture and heritage with five stages of continuous entertainment featuring international, national, and regional Celtic artists, pipe bands, Irish dancers, a diverse marketplace of authentic Celtic merchandise and collectibles, good eats, and more! Be sure to get a good viewing spot for the Highlands Games where athletes showcase spectacular feats of strength and agility as they compete to be for the title of U.S. Champion.
Lehigh Valley Space Fest
September 26, 2026
111 Research Dr. Bethlehem, PA 18015
Lehigh University is proud to sponsor Lehigh Valley Space Fest, taking place from 10 a.m. to 4 p.m. This free, family-friendly event brings space "back down to Earth" with interactive exhibits spanning a variety of scientific disciplines. Visitors of all ages are encouraged to wear their favorite space-themed costumes or NASA gear and enjoy a day of hands-on exploration and discovery.
Bethlehem-Patillas Sister Cities 1 Year Anniversary Celebration
September 26, 2026
Levitt Pavilion, Bethlehem, PA
Another flag will fly alongside Bethlehem’s as the city celebrates the 2nd Anniversary of its newest sister city: Patillas, Puerto Rico.
- Walking Parade Begins: 1:30 pm
- Flag Raising on Levitt Pavilion: 2:00 pm
- Celebration at ArtsQuest: 2 – 6 pm
West End Block Party & Food Festival
September 26, 2026
19th and Liberty St., Allentown's Theatre District, 18105
Allentown’s Theatre District comes together to celebrate the city’s diverse cultural community at the West End World of Food Festival. This block party is filled with finger-lickin’ food, electric musical acts, varieties of beer & wine, and crafts for children. Come explore the food and stay for a great time!
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