The Ultimate Fall & Halloween Guide to the Western Suburbs of Chicago

There’s something special about fall in the Western Suburbs of Chicago. The leaves start to change, downtowns fill with pumpkins and decorations, and communities across the area come alive with festivals, trick-or-treating, family events and plenty of opportunities to get outside and enjoy the season.

Whether you’re looking for a family-friendly afternoon, a festive date night or just an excuse to embrace everything fall has to offer, there’s no shortage of things to do.

Here are some of the fall and Halloween events happening throughout the Western Suburbs in 2026!

🎃 Pumpkin Fest at Cosley Zoo — Wheaton

One of the quintessential fall traditions in Wheaton is Pumpkin Fest at Cosley Zoo.

Throughout the entire month of October, Cosley Zoo is filled with thousands of pumpkins, along with apples, gourds, cider, cornstalks and straw bales. You can visit the animals, pick out seasonal decorations and enjoy the beautiful fall atmosphere.

There are also special activities throughout the month, including a daily scavenger hunt and Saturday face painting. Pumpkin Fest runs October 1–31 from 9 a.m.–5 p.m. WWheaton Park District

📍 Cosley Zoo | 1356 N. Gary Ave., Wheaton

🌽 Scarecrow Weekend — St. Charles

Head west to downtown St. Charles for one of the area's most recognizable fall traditions: Scarecrow Weekend.

From October 9–11, more than 100 handmade scarecrows will be displayed throughout downtown St. Charles. Visitors can walk around town, check out the creative entries and vote for their favorites.

The weekend also includes family-friendly activity zones, live entertainment, photo opportunities, pumpkin painting, an inflatable corn maze, Scarecrow-to-Go and more. The Autumn on the Fox Craft Show will also be taking place nearby at Pottawatomie Park. SSt. Charles, IL

📍 Downtown St. Charles

🏮 Memorial Park After Dark — Wheaton

Looking for something a little more grown-up?

Memorial Park After Dark takes over Wheaton's Memorial Park on Saturday, October 17 from 5–8:30 p.m. This 21+ event transforms the park into a lantern-lit evening experience with live entertainment, interactive activities, food vendors and local legends.

For those interested, the event also includes a Spirit Trail Bourbon Tasting with several tasting stations throughout the park. WWheaton Park District

📍 Memorial Park | 225 Karlskoga Ave., Wheaton

👻 Downtown Trick-or-Treating — Naperville

Downtown Naperville is getting in on the Halloween fun with its annual Downtown Naperville Trick or Treat on Sunday, October 25 from 10 a.m.–12 p.m.

Kids are invited to dress up and visit participating downtown businesses for treats. With downtown streets closed to vehicle traffic during the event, it's a fun way for families to enjoy Halloween in the heart of Naperville. LLiving In Naperville

📍 Downtown Naperville

And if you're looking for even more Halloween fun in Naperville, the Naperville Park District is hosting Halloween Happening the same afternoon from 1–4 p.m. at the Riverwalk Grand Pavilion. The free event is designed for kids 10 and under and includes games, activities, goodies and prizes. NNaperville Park District

🧙 Halloween Festival & Parade — Glen Ellyn

Glen Ellyn's annual Halloween Festival & Parade is a can't-miss fall tradition for families.

On Saturday, October 24, families can gather downtown for a costume parade beginning at 9:45 a.m., followed by crafts, games, costume contests and trick-or-treating at participating local businesses from 10 a.m.–noon.

And yes, even your four-legged family members can join in on the costume fun! GGlen Ellyn Chamber

📍 Downtown Glen Ellyn

🌳 OAKtoberfest — Glen Ellyn

If you're looking for a fall event that isn't centered around Halloween, check out OAKtoberfest at Lake Ellyn Park on October 10 from 3–7 p.m.

This free, family-friendly event celebrates Glen Ellyn's oak trees with live music, games, art activities, face painting, a StoryWalk, guided oak tree tours and more. GGo Green Glen Ellyn

📍 Lake Ellyn Park | 645 Lenox Road, Glen Ellyn

🎃 Downtown Trick-or-Treating — Wheaton

Wheaton has its own downtown Halloween celebration on Saturday, October 31 from 10 a.m.–noon.

Families can head to downtown Wheaton for trick-or-treating and Halloween fun before heading home to get ready for the evening's neighborhood festivities. The City of Wheaton lists regular community trick-or-treating hours as 3:30–7:30 p.m. on Halloween. WWheaton, IL

📍 Downtown Wheaton

🕷️ Boo Bash & Spooktacular Halloween Stroll — Wheaton

Cosley Zoo isn't just about pumpkins!

On October 15, Cosley Zoo is hosting Boo Bash, a new low-sensory Halloween event designed with neurodiverse children and their families in mind.

Then on October 16, families can return for the Spooktacular Halloween Stroll, an evening walk through the zoo featuring seasonal decorations and activities, with an opportunity to decorate a pumpkin. CCosley Zoo+1

🎃 Downtown Trick-or-Treating — Geneva

Historic downtown Geneva is another great place to celebrate Halloween.

On Thursday, October 29 from 2–5 p.m., kids can dress up and trick-or-treat at participating downtown shops and restaurants. Look for participating businesses displaying event signs in their windows. GGeneva IL

And if you're looking for more fall fun in Geneva, don't miss the Autumn Fest Jack-O-Lantern Walk on October 2 from 4–8 p.m., featuring glowing jack-o-lanterns, family activities and plenty of fall atmosphere throughout downtown. GGeneva IL

📍 Downtown Geneva

🧟 Thriller on 38 — Geneva

For something a little different, check out Thriller on 38 on October 10.

This zombie-themed flash mob event features food trucks, a DJ and two performances by Vargo's Dance at 7:30 and 8 p.m. GGeneva IL

📍 Hamilton & Second Streets, Geneva

🍬 Family Night Trick-or-Treating at Cantigny — Wheaton

Cantigny is getting into the Halloween spirit with Family Night Trick-or-Treating on Friday, October 23 from 5:30–7:30 p.m.

Families can dress up and walk through the park, stopping at candy stations along the way. The event also includes entertainment and multiple attractions, and teal pumpkins will be included at some candy stations for children with food allergies or other needs. CCantigny

📍 Cantigny | 1S151 Winfield Road, Wheaton

🚒 Trucks & Treats — Downers Grove

For kids who love both Halloween and big trucks, Downers Grove has the perfect combination.

Trucks & Treats takes place October 17 from 10 a.m.–noon at McCollum Park. Kids can dress up, visit trick-or-treat stations stocked by local businesses and check out fire trucks, construction vehicles and other hands-on vehicles. The event is free and open to children ages 0–12. DDowners Grove Park District

📍 McCollum Park | Downers Grove

🏚️ Blodgett House Boo Fest — Downers Grove

On Halloween afternoon, head to the Downers Grove Museum for Blodgett House Boo Fest.

Taking place October 31 from 1–4 p.m., this free event offers trick-or-treating at the historic museum campus, a Halloween-themed scavenger hunt and spooky games. DDowners Grove Park District

📍 Downers Grove Museum Campus

🍁 More Ways to Enjoy Fall in the Western Suburbs

Of course, you don't need a special event to enjoy fall around here. Some of my favorite ways to make the most of the season include:

• Taking a walk along the Naperville Riverwalk while the leaves are changing

• Exploring the trails and gardens at Cantigny

• Visiting a local farmers market for apples, pumpkins and other seasonal goodies

• Grabbing a coffee and strolling through the downtowns of Wheaton, Glen Ellyn, Geneva, St. Charles or Naperville

• Finding a local pumpkin patch

• Taking the kids on a weekend afternoon to a forest preserve

• Supporting local shops and restaurants during the busy fall season

• Getting outside for a family photo session while the trees are at their peak

🧡 There’s No Place Like Home in the Fall

One of the things I love most about living in the Western Suburbs is how much each community embraces the season. From pumpkins scattered across the lawn at Cosley Zoo to scarecrows throughout downtown St. Charles, glowing jack-o-lanterns in Geneva and trick-or-treating with local businesses, fall is a great time to get out and experience the communities that make this area so special.

If you're already lucky enough to call the Western Suburbs home, I hope this guide gives you a few new traditions to add to your fall calendar.

And if you're considering making a move to the Western Suburbs, fall is a pretty great time to explore the area and get a feel for what makes each community unique.

Happy fall, Western Suburbs! 🍂🎃