Barometers are a useful tool for weather prediction, and come in many sizes and styles from simple to elaborate. This gold barometer clearly shows the inside spring mechanism which moves the gauge in response to changing air pressure.
This decorative barometer measures air pressure and is painted to show white fluffy clouds in a blue sky. Picturesque puffy white clouds with sunny skies mean that the air pressure is neither high nor low and rain is usually not in the forecast.
Barometers are one of the most important tools in weather prediction, measuring air pressure to help determine the forecast. This photo showcases simple barometers with a white face and black needle gauge in a barometer factory.
The gauge on this barometer is pointing to stormy weather which is clearly shown in the background rain and lightening. This brass barometer shows the spring mechanisms inside and has weather descriptions for easier interpretation.