Heating in Chicago, BRrrr!

Recently, our apartment has been very hot. VERY. Like a 90 degree day in summer. It's the hot night in summer where you point all the fans at yourself and can't sleep. Mind you it's Chicago and winter-ish and 32 degrees or less out already. And there are only so many clothes you can take off. The Radiator in my small bedroom is working overtime. It's hissing, it's clanking, it's making its self known to the world. In looking up what could possibly be wrong with this bugger, I found this: http://strawstickstone.com/renters/your-new-noisy-roommate-steam-radiators-in-chicago-apartments/ Really? All I need is a blanket? I have plenty of those! WIN. I guess I'll go close the windows..