You know what they say about Texas..if you don't like the weather give it 30min it will change.
I had a vendor down from Denver, CO, a couple years ago. It was a typical Houston summer day...hot without a single cloud in the sky. We had a thunderstorm blow. One of the good ones where the sky turns pitch black and the rain comes in sideways. The vendor freaked out. He had never seen weather change like that. His response was the only time he ever read about weather changing like that, was in the bible and no good came of it.