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Community Events and Things to do in Ontario, CA

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13th Annual Riverside Tamale Festival
Sat, Apr 18, 11:00 AM
Riverside · White Park
13th Annual Riverside Tamale Festival
Sat, Apr 18, 11:00 AM
Riverside · White Park
Sales end soon
Cooper Museum Speaker Series: Charles Jenkins
Today at 6:30 PM
Upland · 217 E A St
Sales end soon
Cooper Museum Speaker Series: Charles Jenkins
Today at 6:30 PM
Upland · 217 E A St
Taste of Claremont 2026
Sat, Apr 18, 5:00 PM
Claremont · The Claremont Colleges Services
Taste of Claremont 2026
Sat, Apr 18, 5:00 PM
Claremont · The Claremont Colleges Services
Rialto Juneteenth Jam 2026
Fri, Jun 19, 3:00 PM
Rialto · Alec Fergusson Park
Rialto Juneteenth Jam 2026
Fri, Jun 19, 3:00 PM
Rialto · Alec Fergusson Park
The Regency Masquerade Ball
Sat, May 16, 4:00 PM
Jurupa Valley · Crestmore Manor
The Regency Masquerade Ball
Sat, May 16, 4:00 PM
Jurupa Valley · Crestmore Manor
Cooper Museum Speaker Series: Chaffey Legacy in Australia
Thu, May 21, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: Chaffey Legacy in Australia
Thu, May 21, 6:30 PM
Upland · 217 E A St
Riverside Pride Bar Crawl
Sat, Jun 20, 4:00 PM
Riverside · Palenque kitchen by Mezcal
Riverside Pride Bar Crawl
Sat, Jun 20, 4:00 PM
Riverside · Palenque kitchen by Mezcal
Sales end soon
Gothic Tea Party hosted by Inland Empire Goth
Saturday at 1:00 PM
Claremont · Claremont Center For Spiritual Living
Sales end soon
Gothic Tea Party hosted by Inland Empire Goth
Saturday at 1:00 PM
Claremont · Claremont Center For Spiritual Living
Anime Night Mart Moreno Valley Mall Apr. 18th & 19th (FREE EVENT ALL AGES)
Sat, Apr 18, 12:00 PM
Moreno Valley · Moreno Valley Mall
Anime Night Mart Moreno Valley Mall Apr. 18th & 19th (FREE EVENT ALL AGES)
Sat, Apr 18, 12:00 PM
Moreno Valley · Moreno Valley Mall
Cooper Museum Speaker Series: Cucamonga Valley Wine Growing
Thu, Apr 23, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: Cucamonga Valley Wine Growing
Thu, Apr 23, 6:30 PM
Upland · 217 E A St
A Night Out in Riverside | Dinner + An Activity
Today at 4:00 PM + 280 more
Riverside · Restaurant of the Night
A Night Out in Riverside | Dinner + An Activity
Today at 4:00 PM + 280 more
Riverside · Restaurant of the Night
Sales end soon
Courthouse, Murals, & Heroes Tour
Tomorrow at 3:30 PM
Riverside · Mission Inn Foundation & Museum
Sales end soon
Courthouse, Murals, & Heroes Tour
Tomorrow at 3:30 PM
Riverside · Mission Inn Foundation & Museum
Olivewood Cemetery Tour
Sat, Apr 11, 10:00 AM
Riverside · Olivewood Memorial Park
Olivewood Cemetery Tour
Sat, Apr 11, 10:00 AM
Riverside · Olivewood Memorial Park
2026 Picnic in the Park
Fri, Jun 19, 5:00 PM + 2 more
Eastvale · Eastvale Community Park
2026 Picnic in the Park
Fri, Jun 19, 5:00 PM + 2 more
Eastvale · Eastvale Community Park
Cooper Museum Speaker Series: Historic Home Styles
Thu, Jun 25, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: Historic Home Styles
Thu, Jun 25, 6:30 PM
Upland · 217 E A St
LGBTQ+ Speed Dating hosted by Comedy Cupids
Tue, Apr 28, 6:00 PM + 8 more
Riverside · Back To The Grind
LGBTQ+ Speed Dating hosted by Comedy Cupids
Tue, Apr 28, 6:00 PM + 8 more
Riverside · Back To The Grind
Cooper Museum Speaker Series: Water: Past, Present, & Future
Thu, Jul 23, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: Water: Past, Present, & Future
Thu, Jul 23, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: The Human Connection of Sister Cities
Thu, Sep 24, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: The Human Connection of Sister Cities
Thu, Sep 24, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: The Surprising History of American Funerals
Thu, Oct 29, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: The Surprising History of American Funerals
Thu, Oct 29, 6:30 PM
Upland · 217 E A St
2026 Filipino Weekend at Disneyland Resort Reception
Fri, Apr 17, 6:00 PM
Fullerton · Fullerton Community Center
2026 Filipino Weekend at Disneyland Resort Reception
Fri, Apr 17, 6:00 PM
Fullerton · Fullerton Community Center

Trends in Ontario

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Frequently asked questions about Ontario

What are the best events to attend?

According to Eventbrite, the best events are:

13th Annual Riverside Tamale Festival

Taste of Claremont 2026

Rialto Juneteenth Jam 2026

The Regency Masquerade Ball

Which events are currently trending in Ontario?

The trending searches this month in Ontario are:

ontario convention center

Which events are coming up?

Discover the best events happening soon – you don't want to miss them:

A Night Out in Riverside | Dinner + An Activity

Cooper Museum Speaker Series: Charles Jenkins

Courthouse, Murals, & Heroes Tour

Gothic Tea Party hosted by Inland Empire Goth