The Weather Glass Barometer. Reclaiming weather from the microchip, eh? $17.99.
Now you can predict the weather! Simply fill the glass barometer with water. Atmospheric air pressure changes 6 to 12 hours before weather change. The change in pressure causes the water level in the vase of the Barometer to rise into the spout. You can predict the weather according to the relative height between the water level in the spout and vase.