My dad had me convinced that dark storm clouds were actually webs for monstrous "cloud spiders." The first time I flew straight into one of those clouds as a kid (dad was a small-plane pilot), I was terrified and convinced we were flying into a web. Dark clouds still freak me out.
A childhood belief about weather

others believed things like this
- I used to believe that when it would be raining the white clouds lost to the dark clouds.— janet
- I used to believe that Florida was up in the clouds and that's why we had to take a plane to get there.Anon
- When I was a kid, I used to believe a nuclear plant was a clouds plant and could make magic clouds.— Tommy
- That you could actually sit on cloudsAnon
- All clouds came from smokestacks.— Paul
- I used to believe that I could actually cut the clouds with my hand.Anon