by Alton, Illinois — Halloween celebrations are getting underway across Alton, with a free downtown festival, costume contests, family activities and the city’s traditional Halloween parade on the calendar. Residents looking for Halloween events in Alton, IL, in 2026 have several opportunities to celebrate during the final weekend of October, including activities on October 24 and October 31.
Whether families are searching for daytime Halloween fun, a community event for children or a spooky evening outing, checking dates and event hours in advance can help make weekend plans easier.
Great Haunted Alton Halloween Festival on October 24
One of the major events this weekend is the Great Haunted Alton Halloween Festival, scheduled for Saturday, October 24, from noon to 6 p.m. The free celebration will take place around Third and State streets in historic downtown Alton.
The festival will feature a pet parade, live music, local vendors and a costume contest offering cash prizes. Visitors can also explore downtown businesses while enjoying the Halloween atmosphere.
The Howl-a-Ween Pet Parade kicks off the festivities at noon, giving pet owners an opportunity to dress up their four-legged companions. Costume contest participants can register at Mooneyham Art, with registration scheduled to remain open until 5 p.m.
The event is a strong option for visitors who want to enjoy Halloween activities without paying general admission.
Halloween Activities and Costume Events Around Alton
Families can also explore smaller community activities throughout the area during the final week of October.
Hayner Library at Alton Square Mall is scheduled to host a costume swap on October 23 and October 24. The activity gives families an opportunity to look for costume options before Halloween night.
On October 24, the Alton Police Department’s Trunk-or-Treat is listed for 1700 E. Broadway. Families should confirm the latest event hours and participation details before visiting.
These community activities offer alternatives to larger festivals, especially for families looking for costumes, neighborhood celebrations or events involving local organizations.
Trunk-or-Treat Events Before Halloween Night
More Halloween celebrations are scheduled for the final days of October.
First Christian Church of Alton is listed as hosting its annual Trunk or Treat on Friday, October 30, from 4 p.m. to 7 p.m. Another event, Trunk-n-Treat at Brown Street Baptist Church, is listed for the same evening from 6 p.m. to 8 p.m.
These events can give children another opportunity to collect treats and enjoy Halloween-themed activities before Saturday’s celebrations. Families should verify any registration requirements, admission arrangements and event updates before attending.
109th Alton Halloween Parade on October 31
The highlight for Halloween night is the 109th Alton Halloween Parade, scheduled for Saturday, October 31, at 7 p.m. The parade will take place along Broadway in Alton.
The long-running community tradition is an option for residents who want to celebrate Halloween with costumes and a large public gathering. Visitors should plan their journey in advance because parade-related street closures are expected around the route.
Street closures have been approved for the parade, with restrictions along portions of East Broadway and Piasa Street planned between approximately 5 p.m. and 9 p.m. Drivers should allow extra travel time and follow posted traffic instructions.
Planning Your Halloween Weekend in Alton
Residents can start with the free downtown festival on October 24, explore local costume and Trunk-or-Treat activities during the week, and finish with the Halloween parade on October 31.
Before leaving home, check the latest event announcements for schedule changes, registration requirements and any parking or road restrictions. Event hours can vary, so confirming the details is especially important for families attending more than one celebration.
Which Halloween event in Alton are you planning to attend this year? Share your favorite local celebrations and help other families discover more things to do this Halloween.
