3-7 p.m., Central Illinois Community Blood Center blood drive, Knights of Columbus Hall, 7132 Marine Road, Edwardsville.
4-7 p.m., Central Illinois Community Blood Center blood drive, First Christian Church gym, 724 Bethalto Blvd., Bethalto.
6-7:30 p.m., Open House, Open Gate Tour Garden, Drost Park, Schiber Court, Maryville. Hosted by University of Illinois Extension Master Gardeners. Discussing vegetable gardening, plants of the year, perennials, daylilies, butterfly gardening, maintenance techniques. Questions answered. Free.
7 p.m., Washington County Fair, fairgrounds, Nashville. Features a demolition derby. Also carnival rides, arm bands, food stands.
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7 p.m., Presentation, Millennium Room, St. Elizabeth's Hospital, 211 S. Third St., Belleville. Free. "Living Healthy with Diabetes" program by Dr. Ahmed Radwan.