Monster Mash (SomerStreets) | City of Somerville

About the Event

Please note: This page is about a past event. Visit somervillema.gov/calendar for upcoming events.

Event |

Sun, October 19, 2025 - 2:00pm - Sun, October 19, 2025 - 6:00pm

LOCATION

Somerville Avenue
Somerville, MA 02143
United States

Get ready for a spooktacular afternoon at Monster Mash, a free and family-friendly Halloween celebration in Union Square! Come in costume and show off your spooky costumes in our Halloween Parade.

Join us for some community fun on Sunday, October 19, from 2:00–6:00 PM on Somerville Ave (from School St to Washington Ave).

For more information, including the full schedule, visit: https://somervilleartscouncil.org/events/monster-mash/

*Severe weather date: Sunday, October 26

Event Documents

If applicable, any related agendas, minutes, audio/video recordings, and other materials will appear here.

Location

Cost:

FREE

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Add to Calendar 2025-10-19 14:00:00 2025-10-19 18:00:00 Monster Mash (SomerStreets) Get ready for a spooktacular afternoon at Monster Mash, a free and family-friendly Halloween celebration in Union Square! Come in costume and show off your spooky costumes in our Halloween Parade. Join us for some community fun on Sunday, October 19, from 2:00–6:00 PM on Somerville Ave (from School St to Washington Ave). For more information, including the full schedule, visit: https://somervilleartscouncil.org/events/monster-mash/ *Severe weather date: Sunday, October 26 Somerville Avenue Somerville, MA 02143 United States imenjivar@somervillema.gov America/New_York public `