Get ready for a family-friendly, pedestrian-focused event on Saturday, September 12, 2026, from 10:30 a.m. - 3 p.m. that will transform Blue Hill Avenue in Mattapan, from River Street to Babson Street, into a vibrant, car-free boulevard where people can dream, play, and explore. Open Streets Boston in Mattapan will feature live music, food trucks, kid's activities, and much more!

(All Open Streets Boston events take place from 10:30 a.m. to 3 p.m. Streets will be closed to vehicular traffic starting at 9 a.m. and reopen at 4 p.m.

NOW OR NEVER: POWERHOUSE is turning Boston’s City Hall Plaza into a hip hop night club celebrating the city’s creative economy. A night full of talented creatives, amazing DJs, live music, and cultural activations bringing Boston’s creative community together. November 7, 2026 | 8 PM–12 AM | All tickets have been subsidized by Mayor's Office Of Arts and Culture so this event is free to all!

DJs + Artists will be announced soon! Get your ticket now.

This event is part of a City Hall Plaza Event Series supported by the Mayor's Office of Arts and Culture.

RSVP to the event

This event is part of a City Hall Plaza Event Series supported by the Mayor's Office of Arts and Culture. Stay tuned for event time and more details, coming soon!

BLAIR 2026: HALLOWEEN EDITION

Boston’s biggest Halloween celebration is back.

BLAIR returns to Boston City Hall Plaza for another massive Halloween takeover — bringing together live music, DJs, costumes, community, and some of the most exciting women shaping Boston’s creative scene.

Come dressed up or come as you are. Either way, come ready.

🔥 LIVE PERFORMANCES

Nay Speaks

Lynn

Kash Kyla

🎧 SOUNDS BY

BLXSS

Baby Indiglo

DJ Miss Milan

From live performances to DJ sets, BLAIR brings an all-women lineup to the heart of downtown Boston for one unforgettable Halloween night.

🔥 STAY WARM

Halloween in Boston gets cold — we came prepared.

Step inside our tented warming area, grab a hot beverage, warm up, and head right back into the party. The music keeps going all night.

🕷️ MORE TO EXPLORE

BLAIR goes beyond the stage. Expect food trucks, costumes, photo moments, music, and surprises throughout City Hall Plaza.

ABOUT BLAIR

BLAIR is Boston’s annual Halloween party and concert celebrating creative women throughout Greater Boston.

Combining Halloween festivities with an all-women lineup of artists, DJs, entertainers, and creatives, BLAIR creates a platform for the women shaping Boston’s music, art, nightlife, and culture.

What began as a Halloween party has grown into a citywide celebration drawing thousands of attendees and creating opportunities for local talent to share the stage with nationally recognized artists.

At its core, BLAIR is about visibility, community, and making space for women to take center stage.

📍 Boston City Hall Plaza

📅 October 31, 2026 | 6:00pm - 11:30pm ET

💸 FREE + OPEN TO THE PUBLIC

Costumes optional. Energy required.

RSVP to the Event

This event is part of a City Hall Plaza Event Series supported by the Mayor's Office of Arts and Culture. 

Sweater Weather Fest: Where fall meets film.

Sweater Weather Fest is a free, all ages event on City Hall Plaza hosted by Sweater Weather Films, where Boston’s film industry opens up to the public. Taking place October 17, the day includes panels with local working filmmakers, crew, and local production companies, plus a short film contest anyone can enter. Guests can browse fall vendors from around the city, grab food from local favorites, and stop by the beer garden throughout the day. The night closes with a feature screening under the open sky. The plaza is fully accessible, with accommodations available for guests who need them.

This event is part of a City Hall Plaza Event Series supported by the Mayor's Office of Arts and Culture.

RSVP for the event

This event is part of a City Hall Plaza Event Series supported by the Mayor's Office of Arts and Culture. Stay tuned for event time and more details, coming soon!

Mayor Michelle Wu's Summer Dance Party Series concludes this year with .Tribe Vibes, a multicultural experience right on City Hall Plaza. DJ Shy, DJ Cha & Slick Vick will be bringing the music vibes to provide a great soundtrack for the night.

When: Saturday, September 12, 5-9 p.m.

Where: City Hall Plaza

Cost: Free and open to the public

Bring your family and friends for an amazing experience, with great food provided by Lisboa Cafe and more. This event is free and open to the public.

This event is part of a City Hall Plaza Event Series supported by the Mayor's Office of Arts and Culture. Stay tuned for event time and more details, coming soon!

The Art Walk Project and the Mayor's Office of Arts and Culture invite you to take a walk and experience Boston's iconic City Hall Plaza through a new lens. Join us as we explore some of the incredible pieces of art that reflect on our history, the creative landscape of our city, and help make this a dynamic public space.

This event is supported by the City Hall Plaza Engagement Grant from the Mayor's Office of Arts and Culture.

The Art Walk Project and the Mayor's Office of Arts and Culture invite you to take a walk and experience Boston's iconic City Hall Plaza through a new lens. Join us as we explore some of the incredible pieces of art that reflect on our history, the creative landscape of our city, and help make this a dynamic public space.

This event is supported by the City Hall Plaza Engagement Grant from the Mayor's Office of Arts and Culture.