Here is S4 Launcher and Accuweather Widget resized for JB (4.1, 4.2) devices by me.
Home is 4x3 and Apps Grid is 4x4. Accuweather Widget is also resized.
Link for flashable zip:
http://www.mediafire.com/?f5bykd5ctti55oi
Credits:
emwno
Original Thread:
http://xdaforums.com/showthread.php?t=2236937