Wanna see something cool? Or, depending on your current location, hot? Then pop open the Google Now interface on your Android phone or tablet. The Weather card is a regular on the Now page, but you might see something new in there today if you have the recently updated stacked multi-city view showing, namely high and low temperatures values. Neat.
That's all there is, there isn't any more - check out the latest Search APK update, including device-wide "OK Google" activation, for more information.