Yesterday's partial solar eclipse was a washout here in my part of Indiana. The day started clear and sunny, but cumulus clouds started to roll in after lunch. By 5 pm, thunderheads were beginning to build in the west and the sky was growing darker and hazier. However, there was at least some watery sunlight, so I packed up the scopes and headed to a country site. By the time I got there (a mere 10 minute drive), the sun was completely obscured by thick, dark clouds, the edges of which were tantalizingly silver. I waited for a few minutes, but the cloud was growing thicker. I decided to drive a little further to a low ridge with a better western view so I could assess the situation a little better. When I got there, it was obvious that the sun would be a no-show: there was solid cloud covering the western sky.
I guess that is the challenge of astronomy. Like farming, you can prepare, but sometimes nature just doesn't cooperate. I'm hoping we don't have a repeat for the Venus transit.