Dates and times are subject to change by organizers. Please visit the organizers’ website for the latest information.

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  • Meet the Candidates Forum

    Stonehurst 100 Robert Treat Paine Drive, Waltham, MA

    WHEN: Sunday, July 26, 2026 • 11am–1pm WHERE: Stonehurst | The Robert Treat Paine Estate 100 Robert Treat Paine Drive, Waltham WHO: Free event, open to the public An informal […]

    Free

  • Pre-sunset yoga fundraiser at Hardy Pond

    Lakeview Preserve 153 Lakeview Ave., Waltham

    Unwind, relax, and unplug performing gentle and restorative yoga outside at the Waltham Land Trust's Lakeview Preserve on the west shore of Hardy Pond. Laura Arena, a popular instructor at […]

  • Concert on the Common: Black Velvet Band

    Waltham Common 610 Main St, Waltham, MA, United States

    Bring a blanket or a lawn chair and join us for the Waltham Arts Council's free Concerts on the Common summer series. Every Tuesday night in July and August (rain […]

    Free

  • Tu B’Av: A celebration of love and community

    Will be emailed to those who register closer to the date 8 Common Street, Waltham

    Celebrate Tu B'Av, the Jewish holiday of love, with an evening dedicated to the relationships that strengthen our community. Enjoy delicious food, drinks, games and meaningful conversation as we celebrate […]

  • Free outdoor Zumba class

    Free outdoor Zumba class
    Waltham Common 610 Main St, Waltham, MA, United States

    Join us on the Waltham Common for a free outdoor Zumba class! All ages and abilities are welcome. Every Wednesday, May 6 to August 12 unless otherwise posted. Instructor: Jen […]

    Free

  • Movies at the Mansion: ‘Jurassic Park’

    Lyman Estate 185 Lyman Street, Waltham

    "Jurassic Park" (PG-13, 1993): In Steven Spielberg's blockbuster, genetically engineered dinosaurs run amok on a remote island, where a select group must outmaneuver the deadly beasts. Summer nights are perfect for a free outdoor movie on the historic Lyman Estate grounds. Come early to walk the landscape, explore the c. 1793 mansion, have a picnic, […]

    Free

  • Science Heroes: Digging it! | Héroes de la ciencia: ¡A excavar!

    Science heroes: Digging it! | Héroes de la ciencia: ¡A excavar!
    Waltham Public Library 735 Main St, Waltham, MA, United States

    Unearth your love for science in this interactive S.T.E.M. show! Volunteers help us conduct exciting experiments while we celebrate scientists who work with dirt! On the library lawn. This event will take place at the Boys & Girls Club in case of rain. ¡Descubre tu pasión por la ciencia en este C.I.T.A. espectáculo interactivo! ¡Voluntarios […]

    Free

  • Science Heroes: Digging it! | Héroes de la ciencia: ¡A excavar!

    Science heroes: Digging it! | Héroes de la ciencia: ¡A excavar!
    Waltham Public Library 735 Main St, Waltham, MA, United States

    Unearth your love for science in this interactive S.T.E.M. show! Volunteers help us conduct exciting experiments while we celebrate scientists who work with dirt! On the library lawn. This event will take place at the Boys & Girls Club in case of rain. ¡Descubre tu pasión por la ciencia en este C.I.T.A. espectáculo interactivo! ¡Voluntarios […]

    Free

  • Waltham Farmers’ Market

    Waltham Farmers’ Market
    65 Lexington St. 65 Lexington St., Waltham, MA, United States

    Shop local! Shop outdoors! Featuring locally-grown produce, cheese, eggs, meats, baked goods, soaps, sauces, wine and mead, and prepared specialty meals to go. The 2026 location is 65 Lexington Street, the former Elks lodge.  The market is held rain or shine and is wheelchair-, bicycle- and stroller-accessible. Hours are Saturdays, 9:30 a.m. – 2:00 p.m., […]

    Free

  • Waltham YMCA Dash N Splash 5K

    Waltham YMCA 725 Lexington St, Waltham, MA

    Join the Waltham YMCA for a family-friendly 5K race! This year’s race will feature: After you dash, cool off with a splash in our outdoor pool! No membership required! Fun family activities 21+ beer garden Multiple award categories Runners, walkers, and strollers welcome Kids under 12 run for free* (*Please note that they won’t receive […]

  • Cemetery tour with Waltham Historical Society

    Grove Hill Cemetery 290 Main St., Waltham, MA, United States

    Celebrate the 250th anniversary of the American Revolution with a tour of a Revolutionary War veteran cemetery at Grove Hill Cemetery. The tour will be led by Desiree Genthner and will focus on those from Waltham who served in the war. Light refreshments and an exhibit viewing will follow the tour. Get tickets today or […]

    $25