Forecast changes very often

I have tried to UPDATE several times within one minute and I’ve got totally different forecasts in NOW window. I have set up the WWL to see icons in the lower part of WWL’s window. Icons & temperature & forecast seem to be quite untrustworthy - temperature changes between 18 and 30 degrees Celsius within seconds… so do the “weather” icons, so does the forecast (& icons & temperature) in the DAILY window.

I tested with following stations:

  • Shanghai, China (Hongqiao)
  • Xining, China (Xining); got Lanzhou, CH (Lanzhou/Zhongchuan), since Xining was not available)
  • Lhasa, China (Lhasa)
  • Chengdu, China (Chengdu)
  • Wuhan, China (Nanhu)
  • Beijing, China (Beijing)

Similar behavior in Japan:

  • Hiroshimanishi, Japan (Hiroshimanishi); got Miho, JA (Miho Airport)
  • Osaka, Japan (Itami); got Kansai, JA (Kansai International Airport)
  • Tokyo-Ichikawa, Japan (Ichikawa); got Tokyo, JA (Haneda International Airport)

And in Europe:

  • Praha, Czech Republic (Ruzyne)
  • Frankfurt, Germany (am Main International Airport)

Weather Watcher Live is a great idea but I can’t trust it. :sad:
I may be doing something wrong. Any ideas, pls?