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

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  • Watch City Watches: “Jiro Dreams Of Sushi”

    Waltham Public Library 735 Main St, Waltham, MA, United States

    Join us in the lecture hall for a movie and fresh popcorn! We'll watch "Jiro Dreams of Sushi," the award-winning documentary on 85-year-old sushi master Jiro Ono, his renowned Michelin […]

    Free
  • Minutemen Toastmasters of Waltham

    Meadow Green Rehabilitation & Nursing Center 45 Woburn St. off Trapelo Rd., Waltham

    Our club, within Toastmasters International, meets twice a month. We work on improving our communication and leadership skills in a supportive environment. First and third Thursday nights. Join us as […]

  • Farmer Scott’s Heirloom Tomato Plant Sale at Gore Place

    Gore Place 52 Gore Street

    Farmer Scott’s Heirloom Tomato Plant Sale at Gore Place returns! Fill your garden with vegetable transplants, grown on the Farm at Gore Place. Choose from varieties of hard-to-find heirloom and […]

    Free
  • 21st Annual Green Space Blues Jam Gala

    Stonehurst 100 Robert Treat Paine Drive, Waltham, MA

    Join the Waltham Land Trust for an evening of live music, a variety of delicious snacks, desserts, beer, wine, hard cider, non-alcoholic drinks, and an online silent auction (May 14 […]

  • WFCF annual seedling sale

    Waltham Fields Community Farm 240 Beaver St, Waltham, MA, United States

    Waltham Fields Community Farm's annual seedling sale is a great place to stock up on organically grown vegetable, herb, and flower seedlings for your home garden. Our growing team produces a wonderfully diverse collection and grows according to organic standards. See event details for a list of plants expected to be available. Limited parking at […]

    Free
  • 200 Trapelo Road — Grand opening and dedication

    200 Trapelo Road 200 Trapelo Road, Waltham, MA

    Join Mayor McCarthy and city officials as we open the first section of 200 Trapelo's recreation space. Areas to be opened: The Eunice Kennedy Shriver memorial grounds Universal playground and spray park Mini golf Walking path with fitness areas and field Nature area Memorial area

    Free
  • Dogs welcome! Lyman Estate landscape tour

    Lyman Estate 185 Lyman Street, Waltham

    Walk in the paw-prints of the Lyman family's beloved pets on the rolling paths and garden trails of the 37-acre Lyman Estate! Well-behaved, leashed dogs are welcome to join their […]

    $20
  • Waltham Repair Cafe

    Charles River Museum of Industry & Innovation 154 Moody Street, Waltham, United States

    Back by popular demand! Our next event will once again be at the Charles River Museum and it will be completely free and open to the public. Bring in your […]

    Free
  • Charles River Watershed Association 2025 Herring Festival

    Watertown Dam 64 Pleasant Street, Watertown, MA

    A free day of family fun with live music, food trucks, community art, and more! Charles River Watershed Association (CRWA) will host its 2025 Herring Festival, a family-friendly event celebrating […]

    Free
  • 350 Mass — river walk trash clean up

    Enterprise parking lot 140 Moody Street, Waltham, MA

    350 Mass Waltham, a grassroots climate action group, is hosting a river walk trash clean up event. They will be starting in the Enterprise parking lot on Moody Street and […]

  • Stronger strides, fewer injuries: The ultimate running workshop

    Flight Performance and Fitness 13 Wall Street, Waltham

    Calling all runners! Whether you're chasing a PR or just trying to stay injury-free, this workshop is for you. Join us for a 75-minute running seminar led by Dylan and […]

    Free
  • “Becoming Dr. Ruth” — A one-woman show

    Temple Beth Israel 25 Harvard Street, Waltham, MA

    A one-woman show written by Mark St. Germain featuring acclaimed actress Alice Springer as Dr. Ruth. Everyone knows Dr. Ruth Westheimer from her career as a pioneering radio and television […]

    $20