The Book Cellar, books for sale, basement, Warren Public Library, 11 a.m.-2 p.m.
Wilder Museum, Irvine, open, 1-5 p.m.
Chess club, Youngsville Library, 10 a.m.
Pennsylvania Watercolor Society 34th Annual International Juried Exhibition, Crary Art Gallery, 511 Market St., Warren, 11 a.m.-5 p.m. (www.crarygallery.org)
Final Open Read Night of the year at Authors Books & Music, 227 Liberty St., Warren. Aspiring writers & poets invited to read their works in front of an audience; listeners are also encouraged to attend this free event (688-3009)
Comedy and Dinner Show sponsored by North Warren Volunteer Fire Department, featuring professional comedians and a buffet dinner, at fire hall, doors open, 6 p.m.; show, 8 p.m.
Open House, Rouse Home, 701 Rouse Ave., Youngsville, 10 a.m.-noon www.rouse.org.
Spooktacular Story Time, 11:30 a.m., Warren Public Library's Slater Room. Halloween stories, songs, crafts, snacks. Geared to ages three to eight, but all are welcome. Preregistration not required. Children and adults encouraged to dress in costume.
Yankee Bush Productions presents "Captain Fantastic's The Magic of Elton John" by Walt Wise, Struthers Library Theatre, Warren, 8 p.m. (489-3110).
Warren High School Class of 1957, lunch, Eagles Club, Pennsylvania Ave. E., Warren, 12:30 p.m.
Raffle Party, free admission, free chicken and biscuit dinner, Garland Community Center, 204 Extension Rd., Garland, doors open, 1 p.m.; dinner served, 2 p.m.; raffles, auction, 50/50, special games and prizes for children.
Pennsylvania Watercolor Society 34th Annual International Juried Exhibition, Crary Art Gallery, 511 Market St., Warren, noon-4 p.m. (www.crarygallery.org)
Slovenian Polka Boosters, St.Marys Moose Club, 2-6 p.m.