The weather widget on Google's desktop can't display the weather, saying, "Sorry, it can't display the weather information."

My situation is exactly the same as yours. The English version of xp and the version of Google Desktop are 5.8.809.23506. It's been bothering me for n days. It was just solved a few minutes ago. It should be a bug in China version of google desktop (I hate that google experts get such high salary and such a good working environment that they don't care for more than a month).

A compromise solution:

Please delete this gadget first, and then click Add Gadget. In the pop-up window, select "English (USA)" in the upper left corner and fill in "Weather" in the search bar in the upper right corner. Then there will be many weather gadgets. Choose the right one. It is suggested to choose "weather" or "weather globe". That's OK. Maybe I have to choose a new country and city, I forgot.

It's really successful here. The temperature in Beijing is 9 degrees now. You can try.