Can i harvest with little more humidity

While it's growing i'd shoot for a good range of VPD, which will pretty much dictate what RH% you should target. After harvest, cool temps and ~60% RH is good. VPD is no longer important, but coincidentally it'll equate to a specific range too. When you get to 65% and higher you increase risk of microbial growth - whether harvested buds or on a growing, live plant. Too low is also less than optimal. Do what you can. Slightly less than ideal VPD will not derail a grow. Especially when talking about a handful of days out of 80-100 days.

Honestly everyone says to shoot for 60 temp 60 humidity whrn your drying your harvest but I can never get my room down to 60 degrees unless it's freezing outside. So I can normally get my tent to about 67 to 68 degrees have the humidity around 50% anything lower than 50% the buds won't dry evenlly Good uck

I had grows were i could not go lower than 65% rh, in nights it was spiking to 70-75 even. Water in the morning, for plant to have all day to drink up. Have good air movement and exchange and all will be good. Bud rot or other molds are still a possibility, so keep a constant eye !