| Labor Day | 09/04/2023 |
| Gilbert Water Tower Lighting - Labor Day | 09/04/2023 6:30 PM |
| Holiday Session Classes Online | 09/08/2023 |
| Gilbert Water Tower Lighting - In Memory of Queen Elizabeth II | 09/08/2023 7:00 PM |
| Gilbert Water Tower Lighting - 9/11 Anniversary | 09/11/2023 |
| Gilbert Water Tower Lighting - Freedom Day | 09/11/2023 6:30 PM |
| Parks and Recreation Advisory Board | 09/12/2023 6:00 PM - 8:00 PM |
| Gilbert Water Tower Lighting - World Lymphoma Awareness Day | 09/15/2023 6:15 PM |
| Parks for Pollinators BioBlitz at the Riparian Preserve | 09/16/2023 8:00 AM - 11:00 AM |
| Holiday Session Registration Opens for Foundation Members | 09/18/2023 7:00 AM |
| Gilbert Water Tower Lighting - Pitt-Hopkins Syndrome Awareness | 09/18/2023 6:15 PM |
| Holiday Session Registration Opens for Gilbert Residents | 09/19/2023 7:00 AM |
| Gilbert Water Tower Lighting - Ovarian Cancer Awareness Month | 09/19/2023 6:15 PM |
| Holiday Session Registration Opens for Non-Residents | 09/20/2023 7:00 AM |
| ¡Viva! A Celebration of Hispanic Heritage | 09/22/2023 6:00 PM - 8:30 PM |
| Women's Self-Defense Workshop | 09/23/2023 11:30 AM - 2:00 PM |
| Parks and Recreation Advisory Board | 09/25/2023 6:00 PM - 7:00 PM |
| Desert Rivers Audubon Society: Birds and Brew Coffee Break | 09/26/2023 6:30 AM - 9:00 AM |
| Gilbert Water Tower Lighting - Mesothelioma Patient and Caregiver Appreciation | 09/26/2023 6:00 PM |
| Gilbert Cinemas: Pirates of the Caribbean | 09/29/2023 6:30 PM - 9:00 PM |
