I have a 'leaflet' somewhere I got from Met. Office, describing the different types of clouds, what the weather will be at that time.
It also gives ways of telling what the weather is likely to be later. Fronts/clouds nearly always have a certain sequence as they 'come in', if they are far enough apart for breaks happening, a day or more. Not sure if you can still get it.
A good book to read is Mountain Weather by David Pedgley, published by Cicerone.
Dark clouds rolling in and starting to drizzle.
A certain type of moss can only grow on the north side of a tree, as it needs shade. But I don't know which one so can never tell!!
Quick trick for finding North if it's sunny. Put 2 sticks upright in the ground about 6"/15cm apart, if the 'shadow' doesn't meet imagine where it would. That's North.