Any problems with a lower drying temperature?

It’s winter here and my drying shed is an old reefer trailer. It’s currently 40° ish at night and 50°ish during the day. The humidity is 50°. Will these cooler temps give me any problems while trying to dry my cannabis? Thanks

Creates mold in your plants. 80-90 degrees with 90-100% humidity using a humidifier reduce your humidity by point a day from 100% over the next 3-4 weeks to end at 62%

I run a humidifier and a heater in the dry room to try to keep the most optimal conditions