The humidity here is zero, the plants get boxed after one day hang to slow it down. I like mine to hang a week, a consensus I hear of a lot is a minimum of three days to neutralize the plant acids.
But at zero humidity two days and they are dry, a lot of it gets smoked the second day. Not really all that bad, all things are relative. If I'm out of pot it tastes really fine, when I'm fat with the good stuff the two day is not even smokable.
Hang them for up to two weeks if mold is not a problem, taste does improve, which in turn makes it feel stronger.