http://www.ranulos.com/this is what I use. But it does not pertain to raccoon movement it is just pretty accurate weather predictions for my area.
If you're trying to plan for best coon activity your best bet is just going by temps. From what I've seen and read there is no reason for coon moving or not. Temps will give you an idea of when to hit the woods but that is still a guess. I just go whenever I can.