Halloween Carnival in Pullman October 21, 2026 Danielle Kallaher Calendar When: October 31, 2026 @ 12:00 pm – 2:00 pm 2026-10-31T12:00:00-07:00 2026-10-31T14:00:00-07:00 Pullman Parks & Recreation will hold their annual free Halloween Carnival on Saturday from noon-2pm for kids ages 3-10. There will be games, prizes and treats.