Today’s the first official day of fall, but the heat is on as if it’s the middle of summer. Here’s some of what we recommend for your weekend:

Sat 9/23: Choreographer Shen Wei, best known in the West for the opening of the 2008 Summer Olympics, makes his Chicago debut with Folding and Rite of Spring at the Auditorium Theatre (50 E. Congress). 8 PM, $15