The Weather Stick has been used for generations to predict weather. Mount it outdoors with the nail up, the stick will point upward when good weather is on its way and will point downward when things aren't so pleasant. Although we don't know why it works, it may react to either humidity and/or pressure. In any event, the Old Timers had faith in them and that's good enough for us.
It is an interesting and effective way to know what's coming.
"I have ordered your weather sticks several times and have told some friends who have ordered.
Fantastic weather predictor. Can you tell me whether it works on moisture or barometric pressure..?? I have been checking the local airport barometric but am not sure it orients to the barometric pressure...."