I didn't get to post these pictures from 28 August 2015. Just before sunset, the sky was filled with "popcorn" clouds. Perhaps you saw them, too?
Here's a description of these cirrocumulus clouds from The Weather Network:
"These high-altitude "popcorn" cloudlets can be a harbinger of unsettled weather. If they occur with cirrus and cirrostratus clouds spreading broadly across the sky, they may mean rain is on the way within 8-12 hours."