Events and Things to Do in Mountainside, NJ

Wednesday, April 22

Featured

LAVY House LIVE presents Keeping Your Brain Healthy

APR

22

11:00 AM

Westfield, NJ

LAVY House LIVE presents Keeping Your Brain Healthy Wednesday, April 22nd, 11:00AM - 12:00PM This FREE, in-person program will...

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Friday, April 24

Featured

The Nerds! @ Crossroads w/ Alternative Press, and Duck & Cover

APR

24

7:00 PM

Crossroads, 78 North Ave, Garwood, NJ

The Nerds! w/ Alternative Press and Duck & Cover21+

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Saturday, April 25

Featured

Earth Month and Arbor Day at Chatham Borough Hall

APR

25

10:00 AM

Chatham, NJ

Celebrate Earth Month and Arbor Day with a variety of eco-friendly activities including tree giveaways, free seeds, and free...

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Featured

Earth Day 2026 Park Clean-Up

APR

25

11:00 AM

Westfield, NJ

Help us keep our beautiful park clean and healthy for all to enjoy! We're celebrating Earth Day 2026 by organizing a community...

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Sunday, April 26

Featured

Fairview Cemetery & Arboretum Walking Tour

APR

26

2:00 PM

Fairview Cemetery & Arboretum, 1100 E Broad St, Westfield, NJ

Fairview Cemetery and Arboretum will host a spring arboretum walking tour on April 26 at 2 pm, highlighting some of the...

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Tuesday, April 21

• Turtle Back Zoo at the Mountainside Library: Animal Myths 3:30 pm

  1 Constitution Plaza, Mountainside

  
  

Wednesday, April 22

• LAVY House LIVE presents Keeping Your Brain Healthy 11:00 am

  748 E Broad St, Westfield, NJ, 07090 Lavy House at Temple Emanu - El

  
  

Thursday, April 23

• A Guide to New Jersey Day Trips 3:00 pm

  1 Constitution Plaza, Mountainside

  
  

Friday, April 24

• The Nerds! @ Crossroads w/ Alternative Press, and Duck & Cover 7:00 pm

  Crossroads, 78 North Ave, Garwood

  
  

Saturday, April 25

• Earth Month and Arbor Day at Chatham Borough Hall 10:00 am

  Chatham Borough Hall, 54 Fairmount Ave, Chatham, NJ, 07928

  
  
• Earth Day 2026 Park Clean-Up 11:00 am

  Lakeside Picnic Area, Rahway River Park

  
  

Sunday, April 26

• Fairview Cemetery & Arboretum Walking Tour 2:00 pm

  Fairview Cemetery & Arboretum, 1100 E Broad St, Westfield

  
  

Monday, April 27

• Demystifying Artificial Intelligence with PromoAmbitions (Free Event) 4:30 pm

  1 Constitution Plaza, Mountainside

  
  

Tuesday, April 28

• The Beach Bum's Guide to the Boardwalks of New Jersey (Free Event) 2:00 pm

  1 Constitution Plaza, Mountainside

  
  
• Down Syndrome Parent Support Group (Mountainside)

  7:00 pm

  Children's Specialized Hospital Long Term Care Center – Mountainside, Children's Specialized Hospital Long Term Care Ctr – Mountainside, 150 New Providence Rd, Mountainside

  
  

Wednesday, April 29

• Middle School Pizza Night at Mountainside Public Library (Ages 11-14) 3:30 pm

  1 Constitution Plaza, Mountainside

  
  

Thursday, April 30

• Colonial Taverns of New Jersey (Free Presentation) 3:00 pm

  1 Constitution Plaza, Mountainside

  
  
• Keys Across Genres Concert: An Evening with NGXB (Free concert for All ages!) 6:30 pm

  1 Constitution Plaza, Mountainside

  
  

Saturday, May 2

• STEM Adventures at Kiddie Academy of Florham Park 10:00 am

  128 Columbia Turnpike, Florham Park

  
  

Sunday, May 3

• Choral Art Society Concert - The Mestre: History's Classical Bridge from Rio to Vienna 3:00 pm

  The Presbyterian Church in Westfield, 140 Mountain Ave, Westfield

  
  

Saturday, May 9

• A Tour of Notable Homes 10:00 am

  Westfield

  
  
• Stamp Out Hunger Food Drive 12:00 pm
  
  
• You're Invited! Opening Reception for the Art of Darío Scholis 7:00 pm

  Galeria The Art Venue, 111 Quimby St, Westfield, NJ, 07090

  
  

Thursday, May 14

• Monte Carlo Casino Night 6:00 pm

  The Madison Hotel Morristown, NJ, 1 Convent Rd, Morristown

  
  

Saturday, May 16

• Yard Sale 9am -1pm 9:00 am

  Community Presbyterian Nursery School, 1459 Deer Path, Mountainside

  
  

Sunday, May 17

• Classical Piano Program: Piano-Fest! 10:30 am

  Chatham United Methodist Church, 460 Main St, Chatham Township