Temperature says it is -32 degrees outside when it is + 32 degrees

Check for shorts, replace sensor... or just open the window and find out for yourself. :)

Mine was the small circuit board in the overhead console. Got one from a junk yard and swapped it out with no problems. Just make sure the plastic is warm, as when cold they break real easy.

That is two separate problems. The "Flickering" of the outside temperature thermometer might be normal to some extent. Sometimes, the voltage from the sensor is at a point where it could be say, 31 degrees F or 32 degrees F. The display may flicker back and forth between 31 and 32 very rapidly until the voltage changes just enough to go make it go solid one way or the other. It probably does this all the time, but you didn't notice until you were paying attention to the temperature problems inside the car. (One actually has absolutely nothing to do with the other.)

The cracking and popping noises you are hearing from the temperature door and the difference between the temperature on the driver's side and the passenger side are the same problem. Apparently, you have dual zone climate control. This is usually caused by one of the temperature doors sticking and either stripping the gears inside the door control actuator or breaking the door itself. If you have both sides set at "HOT", the side that is cold is your problem-child. This will usually also set a fault code in your climate control module and may make your climate control display flash. (but it doesn't always flash when there is a code present)

The snowflake appears when the outside temperature drops to 40 degrees or below, it then changes to red when it is 32 degrees and below. It seems the manufacturer thinks this will assist you with your driving habits on frozen roadways.

the outside temperature sensor on vehicles takes the temperature of the air about 2-3 inches off the ground, that close to the ground it might be a couple degrees colder than the temperature on the thermometer you have mounted in the window of your house.

I would suspect that the connection to the outside temperature sensor is not good or the sensor itself is bad. Check the connection and clean and reattach as necessary. Otherwise replace the sensor. I think they're pretty reasonably priced.

The outside air temperature sensor for a 2000 Windstar is located under the front bumber on the passengers side. It is clearly visible if you lay down and look through the lower two air openings in the plastic bumper. It is the only electrical device in that area and it is made of black plastic.

you need to replace the ambient temperature sensor or do the math

there is a outside temperature sensor inside the lower front bumper
check wiring harness to sensor, or the sensor is defective

The sensor is located near the hood latch area in front of the radiator. If the temp is reading incorrectly, chances are it is defective. You can purchase a new one, they relativly inexpensive.
Disconnect the electrical connector then remove the sensor.
Good luck, let me know.
Regards,

i belive thats a default reading for that sensor replace it there cheep buy from dealer and locate it in front grill som times debris hit tese and mess them up simple repair probably only one screw holding it on