Here are two pictures of condensation happening above the wing:
The condensation happens because the pressure drops above the wing which in turn causes the temperature to drop. When the temperature drops below dew point then the condensation will happen. The airplane has to be flying slow enough to allow time for the condensation to happen as well.
Here is my question: How does the condensation affect lift?
I would guess that the temperature does not drop as far because the air would stay at dew point.
Another effect could be that the air is not as dense because the water is now a droplet rather than molecular.
Are there other effects?, and how do they affect lift?