I took mine out for first time in a week. 81 deg outside. Trans set to Sport. I drove about 15 mins to my local Best Buy (mostly highway). When I got in parking lot my temps were 185 Engine, 165 Oil, 154 Trans.). I was in there for 10 mins then drove a mile to another store and then headed home. On the drive home on highway my temps were 185 Engine, 195 Oil, 160 Trans). I went about 5 miles out of the way and did a 0-60 pull. The Trans temp went up to 175. I then drove home about 10 mins and when I pulled in driveway my Trans temp was 185.
I have no doubt if you are driving your car harder than I did today you would see temps in the 190's and I have seen mine high 190's in the summer. Now how fast you're getting there would be the question. Mine took a good 30 mins of driving to hit 175.