I have a 95 blazer with a bit of a sputter when accelerating and at idle. The sputter only occurs when the outside temperature is relatively warm. When it is cooler outside, it runs perfect.Could this be a bad intake air temperature sensor?

 

It could be, or your a/c is cylceing on and off. It will cylce in teh winter too, depends on your HVAC setting. A/C is used to keep the fog off the windows. Heat and snow make mositure, and heat alone wont prevent your windows from fogging over, the a/c pulls the moisture from the air.

Next time it happens, turn off your HVAC system and see if it goes away?

If not, your TPS may be on its way out. Get it tested.