1. Conductor James Gaffigan will lead the Chicago Symphony Orchestra in Rachmaninov's Symphonic Dances tonight. Tickets start at $34 for the 8pm performance at the Symphony Center.
2. Halloween is right around the corner—head out to one of Chicago's best haunted houses. Ticket prices start at $25. Times vary by location.
3. See improv with an Elizabethan flair at The Improvised Shakespeare Co.'s show tonight at iO Theater. Tickets are $16 for the 8pm show.
For more events, check in with Time Out throughout the day.