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    Things to Do in Boston Today

    Sunday, September 20, 2026 Boston, Massachusetts 18 events · 0 activities

    Discover 18 things happening in Boston today (Sunday, September 20, 2026) — concerts, festivals, free events, and family-friendly picks.

    Events Today

    Mt. Joy Poster Add On

    Mt. Joy Poster Add On

    Free
    12:00 AM
    TD Garden
    Mt. Joy 2026: Celebrating 10 Years Of Mt. Joy

    Mt. Joy 2026: Celebrating 10 Years Of Mt. Joy

    Free
    12:00 AM
    TD Garden
    Undertale - The Determination Symphony World Tour

    Undertale - The Determination Symphony World Tour

    Free
    12:00 AM
    Boch Center Wang Theatre
    BUNT. (18+)

    BUNT. (18+)

    Free
    12:00 AM
    Roadrunner-Boston
    Costa

    Costa

    Free
    2:00 AM
    The Grand (Boston)
    Reggae Bash World ( 21+ )

    Reggae Bash World ( 21+ )

    Free
    2:00 AM
    Big Night Live
    SPACE 92

    SPACE 92

    Free
    2:00 AM
    Royale Boston
    Furball Boston 9/19: Locker Room

    Furball Boston 9/19: Locker Room

    Free
    2:00 AM
    Legacy
    The Sports Museum Tour & Boston Bruins Heritage Hall

    The Sports Museum Tour & Boston Bruins Heritage Hall

    Free
    2:00 PM
    The Sports Museum
    The Sports Museum Tour & Boston Bruins Heritage Hall

    The Sports Museum Tour & Boston Bruins Heritage Hall

    Free
    3:00 PM
    The Sports Museum
    The Sports Museum Tour & Boston Bruins Heritage Hall

    The Sports Museum Tour & Boston Bruins Heritage Hall

    Free
    4:00 PM
    The Sports Museum
    Boston Bruins vs. Washington Capitals

    Boston Bruins vs. Washington Capitals

    Free
    9:00 PM
    TD Garden
    Cheekface w/ special guest Apes of the State 

    Cheekface w/ special guest Apes of the State 

    Free
    10:00 PM
    Brighton Music Hall presented by Citizens
    Sam Barber - The American Route Tour

    Sam Barber - The American Route Tour

    Free
    11:00 PM
    Leader Bank Pavilion
    The Wooten Brothers

    The Wooten Brothers

    Free
    11:00 PM
    Citizens House of Blues Boston
    Bassem Youssef: The Belly of the Beast Tour

    Bassem Youssef: The Belly of the Beast Tour

    Free
    11:00 PM
    The Wilbur
    Jane Remover: Live Exhibit

    Jane Remover: Live Exhibit

    Free
    11:00 PM
    Paradise Rock Club presented by Citizens
    Paris in Boston ( 21+ )

    Paris in Boston ( 21+ )

    Free
    11:00 PM
    Big Night Live