Patchy rain showers during the past couple of days made for spectacular atmospheric effects late in the day.
"Crepuscular rays" (is the technical term, but there's something about the word that just sucks all the magnificence out of this phenomenon. If you're interested in the nutsy-boltsy version, look here: http://en.wikipedia.org/wiki/Crepuscular_rays
"Old folks" when I was a younger man would say this was the sun "drawing water" or would describe the phenomenon as "Jacob's Ladder". I've always liked those terms better.