Painting In The Rain

My luck. Or poor weather forecasting skills. It hadn't rained in such a long time. I had come to think it would never rain again. I got optimistic about the sun. Overly so perhaps, given the heavy fog of the past few days. Anyway. Bought a picnic table with benches. Got some varnish to protect the wood. Started painting with a nice brush this morning. Then a few darker spots on the wood. More in my neck. It was raining. Got sprinkled on but finished painting. How does varnish dry up in the rain? I wonder.