Why does the wind lay when the sun comes up or the sun goes down?

Question

I live in Illinois and the wind is howling outside and blowing really hard. I think when the sun comes up the wind will lay. Why does that happen.... or is it just my imagination?

Answer 1

Wind usually lays down at night but not always

Answer 2

You are generally right, as any balloonist will tell you! That is one reason that the commercial places run a lot of their flights at that time. For more answers, try this link to a similar question on Yahoo! Answers. The one chosen as best has a lot of good information.

http://ca.answers.yahoo.com/question/index?qid=20061108103559AAzTjpx