Perhaps the phrase "'tis an ill wind that blows no good" originated because storms can literally make some people sick.
No one knows why some people react more strongly to weather changes than others, but changes in air pressure, such as before a heavy rain or snow, can trigger migraines.
Seventy percent of migraine sufferers experience migraines during changes in air pressure systems, according to Newman. This includes changes in altitude and traveling between humid and dry climates.