IF you have not, put them in the ground, do it NOW.
I am in Minn. and planted some very late last year; they sat there till late summer before popping out of the ground. (the potatoes really did not have eyes when got them)
I managed to get a small crop from them but it was weird to see potato plants growing, rather vigorously, when the rest were turning brown or were already out of the ground.
Now up here , rarely, very rarely, do you not have to have them out of the ground by Oct. due to cold, but where you are, if the ground is not too warm, that will cause problems, you should just have a very late crop depending on potato variety.
I mulch mine with leaves, a lot of, which keeps the ground moist and helps keep the ground cooler.