Unused Freestyle’s Windows Fogging Up

We have a 2005 Ford Freestyle that has been out of commission for about 3 years now. It has a problem like many other Freestyle owners with the CVT, although it isn’t officially diagnosed. Anyway, here in California it’s been cold and rainy quite a bit and the windows fogged up last night. We were worried that there may be a hole where moisture is getting in but there is no evidence of water damage. Could I just have a reassurance that it’s just the moisture in the air coming through the air vent?