Fahrenheit, Celsius, millibars – there are far too many measurements used to try to predict future weather. Hell, they even need supercomputers to help do all that work. This clock breaks it down nice and simply: whatever the guy wears is what you probably should wear too. He has shorts on, you wear shorts; he wears a coat, you need a coat. All products should make life this simple.
Product Page (£29.3, about $43)