Some members here may beg to differ, but in my eyes you’re A-OK. The humidity is far more important that a few degrees on the cool side. I would be worried if your temp was over 72. I store a lot of boxes for aging in a Vinotemp wine refrigerator that I have converted into a humidor that stays at a constant 65-66 F. I have never had an issue at that temperature. I don’t think yours at 2-3 degrees cooler will make much of a difference in the cigars, especially if your intention is not long term aging.