Jerry Spessard will discuss “How is Weather Predicted?” 2 p.m. Saturday. Discovery Station, 101 W. Washington St., downtown Hagerstown. Free with museum admission of $5 to $7, free for children younger than 4 years old. Call 301-790-0076 or go to www.discoverystation.org.
An afternoon of classic cartoons. 2 p.m. Saturday. Weinberg Center for the Arts, 20 W. Patrick St., downtown Frederick, Md. $7; $5, students and seniors. Call 301-600-2828, go to www.weinbergcenter.org or visit the box office.
Twelfth Night Concert
A concert of seasonal music to celebrate Twelfth Night, featuring the Capital Carillon Handbell Choir, flutist Julie Belle Huff, and organists Nathan Arch and Nathan Strite. 7 p.m. Saturday. Trinity Lutheran Church, corner of North Potomac Street and Randolph Avenue, Hagerstown. Freewill donation. Call 301-733-2878.
Original stringband and soulgrass
The Hot Seats and The Acoustic Burgoo will perform. 9 p.m. Saturday. Shepherdstown Opera House, 131 W. German St., Shepherdstown, W.Va. $7. Call 304-876-3704 or go to www.operahouselive.com.
Celebrate the King
Kevin Booth will present two Elvis shows and a tribute to Conway Twitty. 7 to 11 p.m. Saturday. Food is available for purchase and there is a cash bar. Hagerstown Elks, 11063 Robinwood Drive, east of Hagerstown. $10. Open to ages 18 and older. For tickets, call the Parent Child Center at 301-791-2224 or purchase at What a Tan, 108 Railway Lane, Hagerstown, or at J&M Grill, 816 S. Potomac St., Hagerstown.
The Trains of Christmas
O-gauge trains operate in a snow-scene layout. Also, trains for children to operate. 1 to 5 p.m. Saturday and Sunday. Hagerstown Roundhouse Museum, 300 S. Burhans Blvd., Hagerstown. $5, adults; 50 cents, ages 12 and younger. Call 301-739-4665.