My humidity is perfect most of the time 40-50% so it will be fine to dry in there.
read the plant cdd, if you see them drooping hold off on water till dried out, and like he said just generally check weight! cause often it is dry on top from the light but underneath the soil can still be moist! In your size pots it's really easy to tell as they will be so light when dry.
Going to garden shop when I wake up, going to buy some stakes, chicken wire, 50 gallon pots and soil. Time to transplant and move outside in three days time, got to go set up the area and probably lay some snail bait, bug paper etc. Will set up the soil and pots in grow spot then take the small pots over there, easier to have it all there and just transplant rather than carry big pots full of soil.