You and a friend are watching TV on a rainy day, when the weather reporter says, “The barometric…

You and a friend are watching TV on a rainy day, when the
weather reporter says, “The barometric pressure is 28.8 inches and rising.”
Hearing this, you say, “It looks like fair weather is on its way.” Your friend
responds, “I thought air pressure had something to do with the weight of air.
How does inches relate to weight? And why do you think the weather is going to
improve?” How would you respond to your friend’s queries?