My 2000 with 5.2L runs between 190 - 200F with AC up all the way at highway speeds(75 -80mph) even here in south Texas at 115F ambient.
The fan and fan clutch only come into play when the vehicle isn't moving fast enough to force air through the radiator. Suspect the fan clutch if:
a: the output from your a/c becomes noticably warmer at stop lights
b: your engine overheats while stopped with engine idling
If it overheats while driving at speed that either indicates an obstruction in the cooling system or possibly water pump failure. I'd remove the thermostat and test it like that for a day. If it still overheats, open the radiator cap and check for water flow. If water isn't flowing, its the pump. If water seems to flow somewhat but its still overheating then the radiator is probably clogged with scale or rust. It is generally faster/easier to just replace it.