If you have more than one weather applet, say one for Washington (D.C.) and one for Moscow (Russia), I think it would be unintuitive to default the Washington temperature to Fahrenheit and the the Moscow temperature to Centigrade. The default settings should be picked up from the locale - as Bill Nottingham says in the Gnome bug: "LC_MEASUREMENT should be fine".
If you have more than one weather applet, say one for Washington (D.C.) and one for Moscow (Russia), I think it would be unintuitive to default the Washington temperature to Fahrenheit and the the Moscow temperature to Centigrade. The default settings should be picked up from the locale - as Bill Nottingham says in the Gnome bug: "LC_MEASUREMENT should be fine".