What is the general opinion of the weather widget accuracy here? I'm beginning to question how accurate it is. As an example, when we got back from the beach (escaping the high of 107), the iPhone widget showed a temp of 100 at 7:30 at night. But the car readout showed 91, and it was clearly not 100 degrees. Is it a lack of accuracy, or a lack of frequent updates on the readings? Anyone know how Yahoo gets it's reading?