Blueberry Cutting Starts

We took blueberry cuttings at the beginning of June and have kept them in a smaller-sized dishpan with unscented garbage bag tied shut in shade.  There is little humidity in Idaho and they need the moisture.  They are doing well and for the past month I have been watering once a week with some fish fertilizer added.  It is time to take them out of bag and I am not sure where to plant them.  It is supposed to be 103 degrees next week.  Should I plant them in pots and set in full shade or part shade?  Also, we used 50% peat moss and 50% potting mix inside the dishpan that cuttings were in.  Not sure if I should use this mix in the pots they are going in?  

We did another dishpan of blueberry starts using playsand and they dried out and died so that was a no-go!

I’ve not been successful with blueberry propagation other than digging up sprouts from the roots. My understanding is that they follow the same rules as most freshly rooted cuttings- very slow acclimation to light. Heat is not as big a deal unless they dry out or it’s super hot like you are talking about. I’d keep them rooting in the partial shade until they make some leaves. Then they  can be acclimated to the outdoor environment