Dont worry abought humidity to much it grows outside in the desert (lots o water) or in florida in the spring. Couple things to remember. Inside in a tent if the humidity gits 80% or higher your carbon filter will not work and your in danger of powerdery mildew. In flower try to keep it down to 50% or lower to advoide any chance of bud rot. If you can drop humidity to 30% or lower in late flower it increases resin production. I dont use a dehumidifier and have no idea what the humidity is in my area with my carbon filter and fan exchanging the air every min in the tent the humidity is whatever it is in my home. As for temp. Again it is a very tolerant plant. Anywhare between 60 and 90-95. Extreme highes and lows will stress the plant and slow it down. The ideal temp is 78 but if your comfortable in the area so is the plant. Im most comfortable at 72 to 82