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Community Events and Things to do in Altadena, CA

Search for something you love or check out popular events in your area.

Westminster Public Works Open House
Sat, May 16, 10:00 AM
Westminster · Westminster Corporation Yard
Westminster Public Works Open House
Sat, May 16, 10:00 AM
Westminster · Westminster Corporation Yard
Sales end soon
2026 Behavior Genius Girl Scouts Troop #1126
Wednesday at 6:00 PM + 22 more
Ontario · 1500 S Haven Ave ste 250
Sales end soon
2026 Behavior Genius Girl Scouts Troop #1126
Wednesday at 6:00 PM + 22 more
Ontario · 1500 S Haven Ave ste 250
Harbor District 2026 LASAN Open House
Sat, Jun 20, 10:00 AM
San Pedro · LASAN Harbor District Yard
Harbor District 2026 LASAN Open House
Sat, Jun 20, 10:00 AM
San Pedro · LASAN Harbor District Yard
FREE Home Composting Workshops and Urban Gardening- Gaffey Nature Center
Sat, May 30, 9:00 AM
San Pedro · Gaffey Nature Center
FREE Home Composting Workshops and Urban Gardening- Gaffey Nature Center
Sat, May 30, 9:00 AM
San Pedro · Gaffey Nature Center
Just added
World Labyrinth Day 2026-Mary & Joseph Retreat Center, Rancho Palos Verdes
Sat, May 2, 12:00 PM
Rancho Palos Verdes · Mary & Joseph Retreat Center
Just added
World Labyrinth Day 2026-Mary & Joseph Retreat Center, Rancho Palos Verdes
Sat, May 2, 12:00 PM
Rancho Palos Verdes · Mary & Joseph Retreat Center
Cielo In The Streets
Sat, May 2, 6:00 PM + 30 more
Santa Ana · Wursthaus
Cielo In The Streets
Sat, May 2, 6:00 PM + 30 more
Santa Ana · Wursthaus
Sales end soon
Alpha | SPRING 2026
Monday at 7:00 PM
Huntington Beach · 16450 Pacific Coast Hwy suite 100
Sales end soon
Alpha | SPRING 2026
Monday at 7:00 PM
Huntington Beach · 16450 Pacific Coast Hwy suite 100
Serenity Village x Take Action LA: Farmer's Market Series Pt. 1
Thu, May 28, 5:00 PM
Lancaster · 742 W Lancaster Blvd
Serenity Village x Take Action LA: Farmer's Market Series Pt. 1
Thu, May 28, 5:00 PM
Lancaster · 742 W Lancaster Blvd
Dittmer/Smith Residence Home Tour (1927)
Sat, May 16, 1:00 PM
Orange · 702 E Chapman Ave
Dittmer/Smith Residence Home Tour (1927)
Sat, May 16, 1:00 PM
Orange · 702 E Chapman Ave
Sales end soon
Boys Transform “E”: Rite of Passage
Tomorrow at 11:00 AM + 4 more
Lancaster · 701 W Ave K
Sales end soon
Boys Transform “E”: Rite of Passage
Tomorrow at 11:00 AM + 4 more
Lancaster · 701 W Ave K
LHHS class of 2006 High School Reunion!
Sat, Aug 15, 5:00 PM
San Clemente · Shorecliffs Golf Club
LHHS class of 2006 High School Reunion!
Sat, Aug 15, 5:00 PM
San Clemente · Shorecliffs Golf Club
Santiago Creek Community Cleanup (Jack Fisher Park Area)
Sat, May 2, 9:00 AM
Santa Ana · Jack Fisher Park
Santiago Creek Community Cleanup (Jack Fisher Park Area)
Sat, May 2, 9:00 AM
Santa Ana · Jack Fisher Park
Sales end soon
Sea The Change: Earth Day Celebration
Tomorrow at 11:00 AM
Huntington Beach · Bella Terra
Sales end soon
Sea The Change: Earth Day Celebration
Tomorrow at 11:00 AM
Huntington Beach · Bella Terra
Lotería Thursdays at Left Coast Brewing | Games, Cash Prizes & Local
Thu, May 14, 6:00 PM
Ontario · Left Coast Brewing Co. - Tasting Room, Smokehouse & Distillery Ontario
Lotería Thursdays at Left Coast Brewing | Games, Cash Prizes & Local
Thu, May 14, 6:00 PM
Ontario · Left Coast Brewing Co. - Tasting Room, Smokehouse & Distillery Ontario
Vaping and Tobacco Community Townhall
Sat, May 30, 10:00 AM
Rancho Cucamonga · Central Park Facility
Vaping and Tobacco Community Townhall
Sat, May 30, 10:00 AM
Rancho Cucamonga · Central Park Facility
Rooted Sunday's IE
Sun, May 17, 1:00 PM + 6 more
Rancho Cucamonga · Central Park
Rooted Sunday's IE
Sun, May 17, 1:00 PM + 6 more
Rancho Cucamonga · Central Park
Sales end soon
Asian American Professionals NAAAPOC Toastmasters Networking Hybrid Meeting
Tomorrow at 2:00 PM
Santa Ana · Kona Kai Mobile Home Park
Sales end soon
Asian American Professionals NAAAPOC Toastmasters Networking Hybrid Meeting
Tomorrow at 2:00 PM
Santa Ana · Kona Kai Mobile Home Park
Sales end soon
WOMENS EMPOWERMENT WORKSHOP
Wednesday at 6:30 PM + 2 more
Lancaster · theBLEND Church Family
Sales end soon
WOMENS EMPOWERMENT WORKSHOP
Wednesday at 6:30 PM + 2 more
Lancaster · theBLEND Church Family
Building New Earth: Communuty is You & Me!
Tomorrow at 12:00 PM
Lancaster · 1821 W Lancaster Blvd
Building New Earth: Communuty is You & Me!
Tomorrow at 12:00 PM
Lancaster · 1821 W Lancaster Blvd
Just added
She Speaks, She Wins: Women's Brunch
Sat, May 2, 12:00 PM
Lancaster · 548 W Lancaster Blvd
Just added
She Speaks, She Wins: Women's Brunch
Sat, May 2, 12:00 PM
Lancaster · 548 W Lancaster Blvd

Trends in Altadena

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Explore more trends

Frequently asked questions about Altadena

What are the best events to attend?

According to Eventbrite, the best events are:

Westminster Public Works Open House

2026 Behavior Genius Girl Scouts Troop #1126

Harbor District 2026 LASAN Open House

FREE Home Composting Workshops and Urban Gardening- Gaffey Nature Center

Which events are currently trending in Altadena?

The trending searches this month in Altadena are:

delphi hotel los angeles

eaton wildfires

Which events are coming up?

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

Boys Transform “E”: Rite of Passage

Sea The Change: Earth Day Celebration

Building New Earth: Communuty is You & Me!

Asian American Professionals NAAAPOC Toastmasters Networking Hybrid Meeting