What temp should furs be dried at after they are fleshed

i try and keep my shed arond 50-60 degrees, with as little humidity as possible. keep a fan blowing in the room also.

Dependant... on what fur you have...granted as J said it's a good way to do it...I've skinned cats ONE day and had them at the sale the NEXT day 100% dry... EARS and all.

I'll have coons and coyotes drying

From 50 to 70 70 is getting a bit warmish, but I do use that temp at night if I need to get fur dried quickly. If your going to use warm temps, be shure you have done a good scraping job.
70 is a bit warm for yotes . You need to keep a close eye on them because they can dry to fast at that temp. One of the main things you need to do is to run a fan or five. All the warm air in the world will do you no good if it is to humid. I even run my wood burner when the temps is in the 50s and raining or we have high humidity.
You can get your building to hot. I had a pretty big dealer that I bought from in the eighties. The man used to cook his coon dry. He had small rooms that he would hang 6 or 700 coon in and would heat these rooms untill they were in the mid to upper 80s. The coon would actually have a bit of an orange cast to the leather. After the first time buying his fur I told him he had to cool his temps or my buyers would not take anymore of his goods.