I disabled the weather widget and then re-enabled it. Got this in console:
2011-11-09 17:30:48.412 DashboardClient[437] com.apple.widget.weather: Fetching data failed, no <adc_Database>
2011-11-10 16:14:34.149 DashboardClient[437] com.apple.widget.weather: Fetching data failed, no <adc_Database>
2011-11-10 16:57:32.111 DashboardClient[437] com.apple.widget.weather: Fetching data failed, no <adc_Database>
2011-11-10 16:58:53.054 DashboardClient[437] com.apple.widget.weather: Fetching data failed, no <adc_Database>
2011-11-10 17:02:04.521 DashboardClient[437] com.apple.widget.weather: Fetching data failed, no <adc_Database>
2011-11-10 17:02:27.060 DashboardClient[437] com.apple.widget.weather: Fetching data failed, no <adc_Database>
2011-11-10 17:02:56.370 DashboardClient[437] com.apple.widget.weather: Fetching data failed, no <adc_Database>
2011-11-10 17:03:23.919 DashboardClient[437] com.apple.widget.weather: Fetching data failed, no <adc_Database>
try the disable/enable at this point:
2011-11-10 20:30:43.291 DashboardClient[437] com.apple.widget.weather: Fetching data failed, no <adc_Database>
2011-11-10 20:31:29.121 DashboardClient[4018] com.apple.widget.weather: Fetching data failed, no <adc_Database>
2011-11-10 20:31:29.862 DashboardClient[4018] com.apple.widget.weather: Fetching data failed, no <adc_Database>
2011-11-10 20:31:44.413 DashboardClient[4018] com.apple.widget.weather: Fetching data failed, no <adc_Database>
Hmmm. Oh well, the newer widget seems to work OK.😎