Beginner classes start at 80 degrees with temperatures rising (but never exceeding 100 degrees). 945 W George St (773-862-9642).
Spring Wellness Center
Offering both heated and non-heated classes, Spring Wellness Center keeps its rooms between 80 and 95 degrees. 1350 W Newport St, #2 (773-327-1678).
Thanks to recently added hot yoga classes, Yoga Tree students can now practice in 85-degree heat. 5238 N Clark St (773-728-7777).
Chicago School of Hot Yoga
Temperatures range from 90 to 95 degrees. 2442 N Lincoln Ave (773-868-9642).
Om on the Range
Classes include vinyasa flow in 95-degree heat and classic Bikram yoga in a steamy 95–105-degree room. 1834 W North Ave, second floor (773-772-9642).
While the Mommy and Me and Yoga Kids classes are cooler, the butt-kicking yoga sculpt classes are heated between 95 and 100 degrees. (900 N Franklin St, suite 508 312-643-8577).
Bikram Yoga South Loop
The 90-minute classes here are a sweltering 105 degrees with 40-percent humidity. 47 W Polk St (312-922-9642).
Bikram Yoga Chicago
Following classic Bikram yoga rules, the rooms are kept at 40-percent humidity and 105 degrees. 2736-A N Clark St (773-348-9642).
Bikram City Chicago Yoga in River North
Temperatures here spike to 105 degrees and about 42-percent humidity. Yowza! 1 E Erie St, suite 520 (312-397-9642).