[masraum]

Originally Posted by flatbutt

We had an azure sky all day. Guess what is happening now?

From my time doing astronomy, I've come to believe that if the sky in the day is completely clear, not a cloud in sight, then you stand a good chance of having clouds come in shortly after sunset, and if you have a beautiful, sunny day with big fluffy white clouds, then there's a good chance that the sky will clear up at night. Of course, those are not hard and fast rules. There are days where you have clear day and night, and more common is complete overcast day and night (like today).