Will there ever be clouds? Would make for better realism in my opinion. Wouldn't feel so cold/empty while driving.
There are clouds... If you're not seeing them, alter your weather settings. This is from over a year ago:
Not sure if it's too late, if it is, might be worth having some discussion in the dedicated thread instead, but here are a few questions: http://isiforums.net/f/showthread.php/13188-Aquaplaning-and-Track-Temperature-Effects
Hoping the vehicles will eventually be able to flex.. body flex, part flex and bending or wobble from vibrations ect.