Warren County Historical Society, 210 Fourth Ave., 8:30 a.m. to 4:30 p.m.
Warren Public Library, Market St., Warren, open, 10 a.m.-5 p.m.
Community lunch, free to the public, The Salvation Army, 311 Beech St., noon.
Wilder Museum of Warren County History, 51 Erie Ave., Irvine, open, 1 to 5 p.m.
Music in the Park sponsored by Northwest Savings Bank, "Temple Grey" (soft rock), Soldiers & Sailors Park, Hickory St. at Pennsylvania Ave. W., Warren, 7-9 p.m.
AT THE WARREN COUNTY FAIR:
Gates Open, 8 a.m.
Farm Team Horse Pull (fair horses only), First Niagara Pavilion, 9:45 a.m.
All buildings open, 10 a.m.
Barnyard Olympics, Leisure Ring, 10 a.m.
Children's Story Hour, Fort Williams, 11 a.m.
Penn State Extension Master Gardeners Program: "Square Foot Gardening," Red Domestic Building, 11 a.m.
Lightweight Horse Pull, First Niagara Pavilion, 1 p.m.
Penn State Extension Master Gardeners Program: "Aquaponic Gardening," Red Domestic Building, 1 p.m.