Temperature, humidity and lighting for drying marijuana

A question from a fellow grower:

What exact temperature, humidity and lighting will you suggest for initial week of drying?

fellow growers i have a question??? my humidity is running very low in my grow room it is running only running 20 to 25 percent how is this affecting my ladies??? i live in southwest where humidity is very low do i or should i get a humidfier to raise it ladies are doing fine right now been grow room for 4 days 750 mh temp running 72 to 82