yes, that is ok. There is not much you can do with the humidity at night unless you want to run a humidifer in the roon but 45 is ok a little low but ok. I live in florida so I am very fortunate with the humidity. Right now my cage is indoors and the temp is 75 and the humidity is 65. Also during the day my ranges are about 60 average and about 85-90 after misting. you should be ok with those temps and humidity.