Drying temperature

I would not worry about the temperature. Being a bit cooler actually helps slow the drying process. Just keep it dark and with some gentle airflow and they should be dry in about 2 weeks. Many people talk about drying until the stem snaps but I find that is a bit too dry. Good is when the small stems snap but the larger ones sort of crunch and make a sharp bend. You can test by filling a small jar with some of the flower and put in a hygrometer (humidity meter). In several hours the reading should stabilize and you will get a good idea of the moisture content. I like 58% or a bit lower for long term storage but I like it at about 62%+ for daily use which makes it softer and more sticky so it packs better and is easier to work with and provides a slightly cooler smoke.