Migraines
Migraines are headaches caused by constriction or dilation of the blood vessels in the brain. Pain generally occurs on one side of the face or head. Sufferers sometimes feel nausea and sensitivity to light or sound. Triggers include stress, hormonal fluctuations, certain types of food and weather.

According to research by the New England Center for Headache, as many as half of all migraines are triggered by weather. Many migraine sufferers single out cold, dry weather as the culprit, though almost any weather change can be a problem. Some doctors suggest that patients keep a detailed headache journal, so they can anticipate weather changes and take preventative medication, if necessary.

Sinus Headaches
Sinuses are the air cavities in the bones around your nasal passages. When sinuses become clogged or infected, the resulting pressure can cause a headache. Symptoms include pain in the front of the head and around the eyes, yellow or green nasal discharge and perhaps a fever. It’s believed that barometric pressure changes may bring on headaches, if the sinus cavities are slow to equalize air pressure. Damp, cold weather can intensify sinus pain.