A trend gives much more information than a single actual state. When planning a tour, an image of the sky helps, but an image doesn't show if it's getting better or worse.
How is it possible to see the timelaps of the actual day ?
At the moment, the time lapse compiles at the end of the day. I have suggested a dynamic time lapse, but it would be a heavy load on the current servers. I will bring up this suggestion again, we may be able to release this feature in the future.