Nintendo have just pushed out an update for their Wii games console
which adds a "weather channel", providing current weather and forecasts
for your city.
I don't know where they're getting their data, but it's not even close
to even being a sensible forecast. Even the "current weather", while
accurate, is only accurate to three hours ago.
There's some photos and extra ranty goodness on my blog:
http://www.davidglover.org/2006/12/wii-weather.html