I respect your knowledge on many things Brysing, but there are things that you don't know about that others may. The changes in weather that can happen really aren't anything drastic so can often be considered coincidence. People can calm, create, or change the direction of the wind. People can, briefly, hold off rain or lighted how it comes down.
It is not a full control of the weather. You can't create things from nothing but you could briefly manipulate it