OCT24toNOV02Día de los Muertos Community Altar & ProcessionPromoted By: Ontario Recreation & Community ServicesOntario Museum of HistoryMultiple Days
OCT27toNOV04Day of the Dead Community DisplayPromoted By: George M. Gibson Senior Center (Gibson Senior Center)250 N 3rd Ave, Upland, CA 91786, USAMultiple Days
OCT31FREEKids StorytimePromoted By: Barnes & Noble - Montclair Place5183 N Montclair Plaza Ln, Montclair, CA 91763, USA5:00 pm
OCT31Costume CarnivalPromoted By: Ontario Recreation & Community Services1010 S Bon View Ave, Ontario, CA 91761, USA5:00 pm-7:00 pm
OCT31FREE🎃🍬 Trick or Treat at the Montclair Police DepartmentPromoted By: Montclair Police DepartmentMontclair Police Department5:00 pm-7:00 pm
OCT31FREE🎃🍬 La Verne Softball Trunk or Treat at Wheeler ParkPromoted By: La Verne Softball1499 Palomares Ave, La Verne, CA 91750, USA5:30 pm-8:30 pm
OCT31FREE🎃⚾ Pomona American Little League Trunk or TreatPromoted By: Pomona American Little League865 E Grand Ave, Pomona, CA 91766, USA5:30 pm-9:00 pm
OCT31FREE🎬 Friday Family Movie Nights - Hotel TransylvaniaPromoted By: Tri-City Mental HealthPomona, CA 91767, USA6:00 pm
OCT31$33.85PNO Halloween Party 2026Promoted By: Chozen Martial Arts Academy670 Arrow Hwy, La Verne, CA 91750, USA6:00 pm-9:00 pm
OCT31FREE🎃⚾ Ted Greene Little League's 4th Annual Trunk or TreatPromoted By: Ted Greene Little League2105 N Orange Grove Ave, Pomona, CA 91767, USA6:00 pm-9:00 pm
OCT31$5.00🏚️👻 Haunted HospitalPromoted By: Upland - Claremont - La Verne867 E 11th St, Upland, CA 91786, USA7:00 pm-10:00 pm
OCT31The Haunted HarvestPromoted By: Frosty's Forest in Frosty's Forest & Pumpkin Patch14861 Ramona Ave, Chino, CA 91710, USA7:00 pm-11:00 pm
OCT31$25.00The Haunted Car Wash in MontclairPromoted By: The Haunted Carwash - OC4384 Holt Blvd, Montclair, CA 91763, USA7:30 pm-8:00 pm
OCT31🍓 Pomona Valley Certified Farmers MarketPromoted By: Inland Valley Hope PartnersCorner of Pearl and Garey Pomona, CA9:00 am-1:30 pm
OCT31FREE🎃🍬 Free Trick-or-Treating at Valley Indoor Swap MeetPromoted By: Pomona Valley Indoor Swap Meet1600 E Holt Ave, Pomona, CA 91767, USA10:00 am-12:00 pm
OCT31Dino-ween at the Alf MuseumPromoted By: Raymond M. Alf Museum of Paleontology1175 W Baseline Rd, Claremont, CA 91711, USA10:00 am-4:30 pm
OCT31Trick or Treat The PatchPromoted By: Frosty's Forest in Frosty's Forest & Pumpkin Patch14861 Ramona Ave, Chino, CA 91710, USA10:00 am-5:00 pm
OCT31$19.00 - $22.10🎃🌽 PumpkinFest at Cal Poly Pomona’s Kellogg RanchPromoted By: Pomona - Montclair4102 S University Dr, Pomona, CA 91768, USA10:00 am-7:00 pm
OCT31Autumn Harvest Victorian TeaPromoted By: Southern California Railway Museum2201 S A St, Perris, CA 92570, USA1:00 pm-4:00 pm
OCT31FREEHalloween Trick-or-Treat in Old Town La VernePromoted By: City of La Verne, CAMainiero Square, 3rd St & D St, La Verne, CA 91750, USA1:00 pm-4:00 pm
OCT31Halloween SpooktacularPromoted By: City of Chino Police DepartmentRuben S. Ayala Park, 14315 Central Ave, Chino, CA 91710, USA4:00 pm-9:00 pm
NOV012026 Halloween CarnivalPromoted By: Glendora Public LibraryFinkbiner Park, 160 N Wabash Ave, Glendora, CA 91741, USA5:00 pm-8:00 pm
