This is fun! Something slightly more broad, capturing golden & blue hour on either side of the day, would be really handy for me as a photographer. The number of times I've just been sat inside whilst an amazing sunset happens outside, and vice-versa where I've gone out to photograph some mountains and the sun goes behind the clouds just as the light starts, are numerous.

The biggest problem I found with weather forecasting is that most people want to know whether it's cloudy/raining overhead. I want to know if it's cloudy and raining somewhere near the horizon :D