The Best Weather Report for NYC

     This link should always get you the current 48 hour forecast from the National Weather Service in super sharp graphical format.  I have that linked tuned for summer, you'll want to tweak it slightly for winter.

     If you have a mobile device, you can point it to my service, here, which shrinks the image.  Red is temperature, Blue is sky cover %, Green is relative humidity, and Brown is precipiation potential.  This image gets updated a few times a day, rather than constantly.