When I was thumbing through the SAS Survival Manual, I was interested in the section about how to predict the weather where you are for the next several hours. I noticed today that my oldest daughter thought it was going to rain today because it was overcast (it didn't btw).

How important do you think basic sky watching/weather prediction is as a survival skill? Making fire and shelter building yes, but how often do people work on their sky watching skills?

What do you think?