# Events & Things To Do In Diamond Bar This Weekend | May 15-17, 2026| AllEvents - **Subtitle**: Diamond Bar is a city full of experiences, activities and events. Explore some of the best things to do in Diamond Bar this weekend and make your Friday, Saturday and Sunday full of fun and excitement. - **Category**: Weekend - **Display Name**: Events this weekend - **Type**: time_filter ## Audience - **Followers**: 20.7k+ - **Recent Followers**: - **Avatar 1**: https://cdn-az.allevents.in/events7/banners/5a33e730-9bcc-11f0-bc74-031dd7b2de88-rimg-w200-h200-dcd3d6db-gmir - **Avatar 2**: https://cdn-az.allevents.in/events9/banners/a48338257a84812cd54e2388b406d5790a67c1cb82be520068ac8692eb1cbcd6-rimg-w200-h200-dcbcc2c0-gmir?v=1758994204 - **Avatar 3**: https://cdn-az.allevents.in/events4/banners/438a0b277edc9e50d8e9d12b0bbf7d8ffa3406978736b8debf3a589dfaee445c-rimg-w200-h200-gmir.jpg?v=1622243409 ## Featured Events - **Event Name**: Lancaster Gun Show - **Description**: LANCASTER, CALIFORNIA! NEW LOCATION! Elks Lodge #1625240 East Avenue K, Lancaster, CA May 16 & 17 Saturday: 9AM to 5PM Sunday: 9AM to 3PM FREE Parking Family Friendly Tickets Avai - **Date**: Sat, 16 May at 09:00 am – Sun, 17 May at 03:00 pm (-07:00) - **Event URL**: https://allevents.in/lancaster/lancaster-gun-show/80003625776483 - **Venue**: Elks Lodge #1625 - **Banner**: https://cdn-ip.allevents.in/s/rs:fill:600:300/g:sm/sh:100/aHR0cHM6Ly9jZG4yLmFsbGV2ZW50cy5pbi90aHVtYnMvdGh1bWI2OWYwZjUwMzYxYWNjLmpwZw.avif - **Event Name**: She's On Tonight - **Description**: She’s On Tonight is a recurring live show series in Los Angeles featuring a surprise lineup of women performers doing comedy, music, and poetry.Performers are paid for their work, and the series is built to support emerging talent i - **Date**: Sat, 25 Apr at 07:30 pm – Sun, 31 May at 11:30 pm (-07:00) - **Event URL**: https://allevents.in/los-angeles/shes-on-tonight/80001467670718 - **Venue**: Best Comedy Club Near Me Theater - **Banner**: https://cdn-ip.allevents.in/s/rs:fill:600:300/g:sm/sh:100/aHR0cHM6Ly9jZG4yLmFsbGV2ZW50cy5pbi90aHVtYnMvdGh1bWI2OWRkNWZhZTUzZGZkLmpwZw.avif - **Categories**: live-music, theatre, comedy, performances, entertainment, art, literary-art ## About Weekends become special if you know how to make the most out of it. There are a lot of fun things to do and events in [CITY] this weekend for you to explore. Make your weekends memorable. Check out all upcoming weekend events in [CITY]. ## Trending Events in Diamond Bar - **Event Name**: 2026 Diamond Bar Community Wellness Day - **Description**: Join us for a fun day of health tips, activities, and good vibes at 2026 Diamond Bar Community Wellness Day!About this EventJoin Us for the 2026 Diamond Bar Community Wellness Day! - **Venue**: Diamond Bar High School - **Banner**: https://cdn-az.allevents.in/events6/banners/b20ec8f556b6b9aba7fee743e0d0db2f05982df99679ebeabd534cefc4a8b399-rimg-w1200-h600-dceef6fe-gmir.jpg?v=1775452316 - **Event Name**: AJR 5-Man Team Baker No Tap - **Description**: Saturday, May 30th Check in at 1pm, bowl at 2pm Oak Tree Lanes in Diamond Bar. 5 per team (must have at least 1 man/woman) 975 max entering average. $60 per bowler ($300 per team) Bowl 10 Baker Games of 9-Pin No Tap. Bowlers alternate frames of the same - **Venue**: Oak Tree Lanes - **Banner**: https://cdn-az.allevents.in/events3/banners/2e00226ddbf2182b598bac6354ed7bf7b7fd2261bbe0efc761f1867520fdbd0e-rimg-w802-h1289-dc16171a-gmir?v=1778602561 - **Event Name**: Pro Approach Handicap 5 Gamer - **Description**: Pro Approach Handicap 5 Gamer Sunday May 24th 2026 @ Oak Tree Lanes Entry Fee: $70 Check In: 10:00am Bowl: 11:00am Oil Pattern: Stonehenge Handicap: 90% of 220 Max of 64 bowlers Side Pots: Handicap Sidepot: $20 (*Separate Men/Women's payouts*) Scrat - **Venue**: Oak Tree Lanes - **Banner**: https://cdn-az.allevents.in/events8/banners/1361d9bca0868399427d62386c51d4d26355382af5c7d81e409593fe5f2db70e-rimg-w1200-h1553-dc78ecf0-gmir?v=1778602608 - **Event Name**: Efficiency and Building Performance Training - **Description**: Join this free one-day Building Performance training brought to you on behalf of the South Coast AQMD GO ZERO Pilot Incentive Program!About this EventThis module focuses on Foundational training on air sealing, insulation - **Venue**: South Coast Air Quality Management District - **Banner**: https://cdn-az.allevents.in/events7/banners/817126705ded193afe975676143e683ae181d71233129eaa6e710b6f37a5cded-rimg-w1200-h600-dcdcf0ef-gmir.jpg?v=1777445295 - **Event Name**: Executive Women's Symposium, Golf Fashion Show, Golf Clinic/Tournament - **Description**: Co-Hosted by LPGA Tour Pros, Lizette Salas & Briana Chacon - Golf Symposium, Fashion Show & Awards Ceremony/Fashion ShowAbout this EventThank you for your interest in one of our most anticipated ev - **Venue**: Diamond Bar Golf Course - **Banner**: https://cdn-az.allevents.in/events7/banners/e544cf0ed8f0b91b014a710c87276afc57668347879aee4a13307355020a414f-rimg-w1200-h1200-dcffffff-gmir.jpg?v=1760476947 - **Event Name**: Trusts Vs Wills - **Description**: Come learn whether you need a Trust or Will in this FREE educational seminar.About this EventDon't Miss Out: Trusts Vs Wills Educational Seminar!Join us for an eye-opening, in-person session where we break do - **Venue**: Diamond Bar Center - **Banner**: https://cdn-az.allevents.in/events8/banners/ccf22feed92530a6f398405e3f337819ac690f5b6e7740947ff0d8c32fd4b4c1-rimg-w1200-h659-dcd9d6d6-gmir.jpg?v=1769228143 - **Event Name**: Facts about Annuities - **Description**: FREE - What are the pros and cons of annuities, and how do they differ from other savings and growth vehicles? Come get some free tips!About this EventDon't Miss Out on this FREE Facts about Annuitie - **Venue**: Diamond Bar Center - **Banner**: https://cdn-az.allevents.in/events10/banners/385775ee949c90af8daf4d160d677b86bdf3ac9dc0396e7bf5489edd07ccbe86-rimg-w1200-h659-dcd9d6d6-gmir.jpg?v=1771830511 ## Browse Weekend Events by Date - [Weekend Events Today in Diamond Bar](https://allevents.in/diamond-bar/this-weekend--today) - [Weekend Events This Weekend in Diamond Bar](https://allevents.in/diamond-bar/this-weekend--this-weekend) - [Weekend Events in May in Diamond Bar](https://allevents.in/diamond-bar/this-weekend--may) - [Weekend Events in June in Diamond Bar](https://allevents.in/diamond-bar/this-weekend--june) ## FAQs - **Q**: What are the top Weekend events in Diamond Bar? - **A:** Lancaster Gun Show (Sat, 16 May at 09:00 am at Elks Lodge #1625), She's On Tonight (Sat, 25 Apr at 07:30 pm at Best Comedy Club Near Me Theater). - **Q**: What Weekend events are happening in Diamond Bar this weekend May 15–17, 2026? - **A:** Lancaster Gun Show (Sat, 16 May at 09:00 am at Elks Lodge #1625). - **Q**: What Weekend events are happening in Diamond Bar in May 2026? - **A:** Lancaster Gun Show (Sat, 16 May at 09:00 am at Elks Lodge #1625). - **Q**: How can I find Weekend events in Diamond Bar? - **A:** You can discover upcoming Weekend events in Diamond Bar on AllEvents.in. Browse by date, venue, or price to find events that match your interests. - **Q**: How do I buy tickets for Weekend events in Diamond Bar? - **A:** You can buy tickets directly through AllEvents.in. Many events offer online booking with options for free, paid, and early-bird tickets. - **Q**: What are the popular venues for Weekend events in Diamond Bar? - **A:** Some popular venues hosting Weekend events in Diamond Bar include Elks Lodge #1625, Best Comedy Club Near Me Theater. - **Q**: Who are the top organizers for Weekend events in Diamond Bar? - **A:** Popular organizers hosting Weekend events in Diamond Bar include GunTv Shows LLC, Blossom Philanthropy. - **Q**: Are there any online Weekend events available? - **A:** Yes, many Weekend events are available online. You can filter for virtual events on AllEvents.in to attend from anywhere. - **Q**: How can I get notified about new Weekend events in Diamond Bar? - **A:** Follow the Weekend category on AllEvents.in to get notified when new Weekend events are listed in Diamond Bar. ## Category Banner - **Banner Image**: https://cdn2.allevents.in/transup/01/bac113436441a783feaca7074943a8/this-weekend.webp ## Events this weekend from nearby cities - [Events this weekend in Pomona](https://allevents.in/pomona/this-weekend) - [Events this weekend in Chino Hills](https://allevents.in/chino-hills/this-weekend) - [Events this weekend in San Dimas](https://allevents.in/san-dimas/this-weekend) - [Events this weekend in La Verne](https://allevents.in/la-verne/this-weekend) - [Events this weekend in Covina](https://allevents.in/covina/this-weekend) - [Events this weekend in Claremont](https://allevents.in/claremont/this-weekend) - [Events this weekend in Chino](https://allevents.in/chino-ca/this-weekend) - [Events this weekend in Montclair](https://allevents.in/montclair-ca/this-weekend)