Diamond Bar, CA community calendar
Explore upcoming community events, local activities, public meetings, concerts, festivals, and seasonal things to do in Diamond Bar, CA. Verify final times, locations, and availability with the organizer before attending.
Upcoming schedule
Monday, August 24, 2026
Diamond Bar's annual Through My Lens photo contest accepts entries through Monday, August 24. The free contest is open to youth age 17 and younger and adults age 18 and older, with categories for People, Pets, Places, N...
Monday, August 24, 2026
Diamond Bar's 2026 Through My Lens Photo Contest remains open through Monday, Aug. 24. Residents can enter photographs taken within city limits in the past two years in categories including People, Pets, Places, Nature...
Tuesday, August 25, 2026
The City of Diamond Bar has canceled the Planning Commission meeting scheduled for Tuesday, August 25, at 6:30 p.m. in the City Hall Windmill Room, 21810 Copley Drive. Residents who planned to attend should not go to th...
Tuesday, August 25, 2026
The City of Diamond Bar has canceled the Planning Commission meeting scheduled for Tuesday, Aug. 25, at 6:30 p.m. in the City Hall Windmill Room, 21810 Copley Drive. No meeting will be held that evening. The city's cale...
Wednesday, August 26, 2026
Diamond Bar residents can bring a vehicle to a free catalytic converter etching event Wednesday, August 26, from 9 to 11 a.m. at Calvary Chapel Golden Springs, 22324 Golden Springs Drive. Walnut/Diamond Bar Sheriff's St...
Wednesday, August 26, 2026
Walnut/Diamond Bar Sheriff's Station personnel will offer free catalytic converter etching on Wednesday, August 26, from 9 to 11 a.m. at Calvary Chapel Golden Springs, 22324 Golden Springs Drive. Staff will etch a vehic...
Wednesday, August 26, 2026
Walnut/Diamond Bar Sheriff's Station personnel will offer free catalytic converter etching Wednesday, Aug. 26, from 9 to 11 a.m. at Calvary Chapel Golden Springs, 22324 Golden Springs Drive. Bring a vehicle for its cata...
Thursday, August 27, 2026
Diamond Bar High School has scheduled Back to School Night for Thursday, August 27, 2026. The event is listed for Diamond Bar High School at 21400 Pathfinder Road. The school calendar does not provide a start time or ad...
Saturday, August 29, 2026
Another overnight construction closure is scheduled for eastbound 60 Freeway lanes between Lemon Avenue and Diamond Bar Boulevard beginning Saturday, August 29, from 12:01 to 6 a.m. The closure continues Sunday, August...
Saturday, August 29, 2026
Another overnight weekend closure is scheduled for eastbound SR-60 between Lemon Avenue and Diamond Bar Boulevard beginning Saturday, Aug. 29. The Saturday closure runs from midnight to 6 a.m., followed by a second clos...
Local event questions
This guide currently organizes 10 upcoming events connected to Diamond Bar, CA, including public community activities and local happenings when those records are available.
NewsAndHomes refreshes the Diamond Bar, CA event guide as public-safe schedules are added or changed. Always verify final event details with the organizer before attending.
Use the dated event cards on this page to browse upcoming things to do in Diamond Bar, CA. Events are ordered by date and link to individual detail pages with available local context.
Not necessarily. Admission, registration, age restrictions, and availability vary by event. Check the individual event details and the organizer's current information before making plans.
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