I have the same problem after I wash the car in the winter time!
What works for me is drying the inside of the door frame with a rag. When the door will not close when it is cold out, I spray the latch that holds the door closed, with WD40. It works every time. laugh

Stephen

96 Contour, GL, Zetec, ATX.
03/18/1996 Build Date.
Drop in K&N
NGK Laser Platinum Premium Spark plugs
Niehoff Premium Ignition wires
Wheel Well Air Intake Resonator removed.
*Just the beginning*