Took it to the dealer & said nothing was wrong

just the humidity. Owned a lot of cars & never had one do this. Now my Chevy van will fog the windshield if you run the defrost for a long time like when it is raining that is why I think something is wrong under the dash & putting too much air out the defroster vents & not enough out of the A/C vents.
I am just North of Hannibal in NE MO