I think I'm finally in a position to take out a dent in my rear 3/4 panel. I'm wondering if it might be best to wait until summer when the ambient temperature is higher. I'm in LA but it will get as low as 50's during mid day. I'm not sure if the newer water based (are they all this way? EPA rules?) painting processes are best done in warmer weather. Any toughts?

Always have at least 70 degrees myself as did a 1/2 ton 20 some years ago at 50-55 degrees and paint did not bond properly and have heard of some bonding problems with bondo too. T hough did not experience myself. But if only a quarter to fix and paint just beg, borrow or steal some heat lamps to warm up area you are working on. Needless to say if using anything flamable watch those heat lamps. Proffesional body guy may give more definitive answer.