Can impending weather affect a dog?

This is nothing to worry about at all. My city doesn't get storms often, but when we do they are huge. Our dogs are always freaked out and they actually won't go the bathroom until it has cleared up outside. Dogs can sense pressure changes (like most animals) and can be sensitive to them. If you are concerned, your vet can suggest treats with calming ingredients. But to me, she sounds completely fine, just a little off.