I've tried to get an idea or even fix it by messing with decompiled files of other apps like google news or yahoo weather but since apktool was not-so-compatibile with ICS apks i can't recompile the apps
It cannot be done without modyfing source code or rewriting the app from scratch
sorry.
Ok, so (as it was told a few posts before) there is no need to cry. I've found another htc-sense-4-alike-widget with working weather (u can even choose weather and location provider!) here ->
http://xdaforums.com/showthread.php?t=1721809
have fun