Attention: The folks at weather.com have upgraded their platform in July 2009 to make the API key mandatory. It wasn’t required previously (apart in writing), and the Weather plugin didn’t implement that before 0.6.3. You’ll need version 0.6.3 or more recent to make the Weather plugin work again.
xfce4-weather-plugin-0.7.2-alt1 -> sisyphus: * Fri Jun 18 2010 Paul Wolneykien <manowar@altlinux> 0.7.2-alt1 - New upstream version 0.7.2 (closes: 23634)