Well theres only one way to find out. Take the wheel off and weigh it.
This is my BMW's old spare that I keep at home. Its a 14"x6" steel wheel with 195/60R14 tire. Add the jack and lug nut tool and thats 50# of dead weight out of a 2600lb car. Steel wheels and tall tires are heavy. The CRV wheel/tire combo weighs at least 10lb more than mine.
http://www.wheelsmaster.com/rt_specs.jsp