On my way to work this morning, I turned the A/C on. The vent above the radio closest to the steering wheel started to blow out what looked like fog. I shut of the A/C right away and it stopped. Any body know what this could be? I'm assuming its just because its a pretty humid day, but I wanted to make sure there isn't anything else I should worry about.

BTW its an 06 Endeavor with 50k on it if that matters.

 

humid air + a cold AC evaporator = vapor.

leave the car on "recirculate" for max AC. the massive humidity pounding the midwest needs to be pulled out of your car, and if you leave it on "outside" air, your AC will be overwhelmed.