Can headaches be caused by a change in the barometric pressure i get headaches when the weather changes, hot to cold, cold to hot, storms, etc.

Any : Any air filled cavity that normally is in communication with the air around us (i.e., middle ear space via the eustachian tube, paranasal sinuses via the small openings that drain into the nasal cavity proper, etc.) that subsequently becomes blocked (due to mucosal swelling from any cause) can translate those pressure changes to the sensory lining of those cavities and cause pain. This is why babies often cry during airplane descent relating to pressure pains in their ears, or divers who can't equalize pressure during descent get sinus pain ( "sinus squeeze") or ear pain. One can even get dental pain from air pockets around dental roots for the same reason ("dental squeeze").

People : People with arthritic changes in the cervical spine often say they have headaches with pressure changes. These headaches tend to be more of a muscle tension type of headache.