This is one of the movies I've seen thanks to Mother's access to TCM. Miracle in the Rain is a slow-moving film and too sappy for my taste. It stars Jane Wyman and Van Johnson. This is one of Arte Johnson's earlier roles.
Here are the opening few minutes:
DVD Talk calls it "a truly odd movie" and says, "The film's only excuse for success is that it loves its characters and presents them all as deserving of a miracle." TimeOut says it's "much better than one might expect." The TCM overview is here.