Hotel Bristol
Stampfenbachstrasse 34
8035 Zurich, Switzerland
Any recommendations? It needs to be very close by because I will not have an automobile, and I need the option to pay by the day without requiring a membership. I will be in Zurich for 2 weeks later this month.
Firstly, you might want to check with the hotel, as many offer basic workout facilities (although not usually with free weights) or have arrangements with nearby gyms.
I know of two gyms near to your area, www.mcfit.ch and http://www.activfitness.ch/seiten/studio/central.htm, but I don't know about short term membership. I'd suggest you call or drop in and ask. I'm sure McFit has a single entry option. It definitely has lots of free weights.
There's a thread here where we discuss some of the Zürich gyms