In all likelyhood, the weather will be nice. Not too hot and not too cold. I guess there could be a cold front or warm front, but I wouldn't count on it. You also shouldn't have too much rain.
Do you have an AC in your pop-up? It may not be necessary, but if you have it, you have absolutely nothing to worry about. You should also buy a small ceramic heater. It's a good thing to have all the time. We have one that rotates, and if we put it on the table, it heats both of the bunk ends very well.
Have fun!