When are you planning on visiting and where, in general, are you staying? Houston is currently 104-109 degrees and doesn't really cool off to tolerable temperatures until late October or early November when the first authentic cool front moves through the area.
Although I no longer live there, I used to play a lot of golf in Houston in my early post-PSU years and might be able to offer some advice. I know there are a number of new courses that have been built recently, but I think they are a good distance from the inner loop.