The ever expanding Chaucery fun area is proud to announce its newest addition, the Weather Guesser. Unlike most online weather tools, this does not ask where you are located, but attempts to work it out itself.
For most people, this means a tradeoff between accuracy (of getting the location 100% right) and convenience (of having to specify your location). However, occasionally the location may be unknown, for which this tool is a more useful proposition. Memory-impaired backpackers of the world, here's your new homepage.
This is also a good demonstration of the frailties of geolocating computers. I believe that cities are guessed correctly 60% of the time, and countries 95%. Where only the country is known, the weather from a random city in that country is chosen. Specifically, the weather from the nearest major airport to that chosen city is used, as this data is easily and freely available.
If you belong to a large multi-city internet service provider that uses Dynamic IP or a proxy server, then there may be only a weak correlation between IP address and location. In those cases, the Weather Guesser becomes more of a vicarious window on the world.