I, too, notice a huge increase in headaches when the weather changes. I notice this with any change but especially when it rains and storms. In fact, when it storms and the thunder really starts to crack, I sometimes get relief right after a clap of thunder. I lived in Florida for awhile, and although it rains there almost daily, I did get fewer migraine headaches. My hypothesis is that this is because it's always hot and muggy there; there are less drastic changes in the climate. Maybe we should all move to FL! Or maybe AZ?