i have a 1994 dodge ram 1500 with a 360 under the hood that has 108000 on it. The truck stalls when it hits normal operating temp then after a min it starts right back up and is fine the rest of the day. When it is around 75 or hotter out it doesnt stall but any colder and it does. Any ideas?

Start with the easy/free stuff. Pull the throttle body, remove the IAC motor, and clean all the crap out. (leave the battery disconnected while you do this.) See if that doesn't improve it's attitude.

i have done this but it still does it

Not going to spend your money,but that is a symptom of a failing crank sensor.

why wolt it stall in warm weather?

Electrical parts do funny stuff...... Might be any of a number of things. TPS, Cam or Crank sensor.... failing relay. Intermittents are always the most fun to figger out.

PCM also. Sometime when it's cold out. Warm the PCM up with a hair dryer and see if the problem persists.