This is our first time experiencing 80+ % humidity in conjunction with 90 degree temperatures. We are from the west coast. We are now in Indiana for a month, then Kentucky for a couple more. M...
We part time and yes you will see mold and mildew. You'll find it around the window frames and other things that tend to sweat.
If it's hot then run the AC non stop. If it's wet and chilly, then the only thing to do is buy a small dehumidifier. If you want to be comfortable that's the only options I know of.