There are many different weather instruments used to tell what the weather is like or to predict the weather. Some of the weather instruments can even be found in your house!
The thermometer is an instrument that is used to tell what the temperature is. The hygrometer is used to tell the humidity in the air. The barometer is used to tell what the air pressure is. There are many variations of these instruments. They can be used to tell a person if the heater or the air conditioner should be turned on. Weather instruments give clues about the weather.