Clear-sky rain
During the morning walk I felt drops of water on my arms. At first I thought it was lawn sprinklers, but it was definitely coming from overhead. I could see the water glistening on the pavement, and at one point I saw about a dozen drops falling in a group. The sky is mostly clear, a few fluffy cumulus clouds. Nothing that would signal rain.
Never experienced this before.
Checking radar:
Aha. There is some real rain a few miles away. Maybe these drops were carried from the real clouds by the jet stream?