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About the Event

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

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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


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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 `

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