Too Cloudy for Solar Cooking

I couldn't put anything in the solar oven today due to an overcast sky. The sun didn't come out until late afternoon. I had been looking forward to a day off but now that I had one I was a little disappointed. Tomorrow we will be dining out for both lunch and dinner so I plan on giving bread another try. We rarely have two cloudy days in a row here in Phoenix so I'm pretty confident it will be a good day for solar baking.