The new site is useless for the few things I still used a weather website for. Firefox's performance thing said it takes 30+ seconds to load fully. Google Now's weather card covers 90% of what I used to use it for.
Is there a good weather app with a radar that has storm tracks for < $3? That's the main thing I used it for.
Someone else probably has good suggestions, but in case nothing suits your needs (and you're in the U.S.) the National Weather Service has RSS and KML/KMZ feeds for most of their products that shouldn't be too hard to remix as you see fit.