AFAIK, no. Most, if not all, memory doesn't have a thermal diode or temp. circuit on the simm, so there's no way for a software program to measure it.
re the 'if not all' part: I wouldn't be surprised if some high-end memory mfg like OCZ has some method of measuring the ram temp, and may actually come with software to read it. However I don't know of any.
The other option is to get your own thermometer of some sort and measuring it yourself...
Mike.