I got snowed on on July 4,2007 above Taos...
I got snowed on on July 4,2007 above Taos Ski Valley and on Aug 12 at Glacier National Park. Didn't read much about how this bag does in 20-30 degree weather.
The BA Encampment does great in the 20-30 degree F temperature range. I always recommend having long underwear close @ hand just in case a person does get a little cold during the night. Women seem to have this tendency more so than men.