Tire temp indicating wear?

tire, tires, temp, inside, rear, wear, thermometer, craig, continue, unevenly, highway, cruise, infra-red, check, 42c/106.7f, minute, 36c/96.8f, suggest, tread, wearing, indicating, rears, replaced, back, slapped, balljoint, alignment

My rears were wearing much more on the inside of the tread. So I replaced the bad balljoint and got an alignment, then slapped on some new tires. I just got back from a 30 minute highway cruise and I used an infra-red thermometer to check the tire temp. Outside Right Rear tire: 36c/96.8f Inside Right Rear tire: 42c/106.7f Does this suggest I