Mayor Katjana Ballantyne and the Somerville Arts Council invite community members to close out the 2025 SomerStreets season with a festive and spooky Monster Mash on Sunday, October 19, from 2 to 6 p.m. on Somerville Avenue (School St. to Washington St.). In the event of rain, festivities will take place on Sunday, October 26. 

Highlights include:

• Community Halloween Parade led by School of Honk (3:30 p.m.)
• Performances by the Wicked Awesome Dancing Witches of Greater Boston

Pumpkin carving with Somerville Recreation

• Haunted house and cardboard creations by Monano Arts
• Arts activities with Dani Folds and Culichi Arts
• Performances and movement activities by Cate the Great, Just Felice, EventThem, and Parkour
• Live music curated by Mass Ave Music at Somerville Ave. & Church St. stage
• Union Square Stage performances by Pluto’s Return, Madalena Silva, and a Vinyl session by NXN – bring your own vinyl to be spun.

Food and vendors:

• Local favorites including Dos Manos Kitchen, Gracie’s Ice Cream, fried dough, and Nibble • Kitchen and Makalu Boston
• Artisan goods and vintage finds curated by Blue Bandana Relics and Tiny Turns Paperie

Getting here and road closures:

• Somerville Ave. (School St. to Washington St.) is closed to all vehicular traffic from 11 a.m. to 8 p.m.
• Limited parking available; walking, biking, or transit strongly encouraged
• Accessible parking on School St. by Somerville Ave.
• MBTA buses rerouted; check MBTA.com for service updates

For more information about SomerStreets, visit www.somervilleartscouncil.org.