SLIPPERY ROCK — All Saints Lutheran Church, 351 S. Main St., will hold its annual rummage sale Sept. 5 and 6.

The sale is during Heritage Days and will include a bake sale.

HARMONY — The Harmony Museum will sponsor a flea market from 8 a.m. to 2 p.m. Sept. 6 in its Stewart Hall at 218 Mercer St. Food will be available.For more information, contact Brenda Benek at 412-334-1252 or the museum office at 724-452-7341.

GROVE CITY — Grove City will host the Autumn Art Weekend Sept. 11 through 13. The organizers are Olde Town Grove City and Grove City Arts Council.There will be a farmers' market in the Joseph D. Monteleone Youth Festival Park from 3 to 6 p.m. Sept. 11, followed by an art walk from 4 to 8 p.m. and a Downtown Sounds concert from 6:30 to 8:30 p.m. in the park.The play, “Sylvia,” will be performed at 8 p.m. Sept. 12 in the Papersky Theatre at AOX Hub, 145 S. Broad St.A second Downtown Sounds concert will be from 6:30 to 8:30 p.m. Sept. 13. Another performance of “Sylvia” will be at 8 p.m. Sept. 13.For more information, visit OldeTownGroveCity.com.

Dining with Diabetes, a three-part program about how to manage diabetes, will be offered by Penn State Extension beginning Sept. 17.The program includes information for planning healthy meals, healthy food preparation and physical activity.Classes will be from 3 to 5 p.m. Sept. 17, Sept. 24 and Oct. 1 at the Penn State Extension office, 101 Motor Pool Way, behind the Sunnyview Nursing and Rehabilitation Center.Registration is required. There is a limit of 15 participants, and the registration deadline is Sept. 15.To register, or for more information, call 724-287-4761.

BAKERSTOWN — The Bakerstown United Methodist Church, 5760 William Flinn Highway, will have a trunk sale from 8 a.m. to 1 p.m. Sept. 13.For information or to reserve a spot, call Donna Williams at 724-443-6108.