The first time in rained on The Midnight Society, the second time it rained was during "The Tale of Cutter's Treasure: Part 1", the next time it rained was during "The Tale of C7".
Ivan Smith who portrayed Mr. Johnston, reappeared two more times in the series. The second time he appeared in the episode, "The Tale of a Door Unlocked" as Mr. Birney. The third time he appeared in the series revivals episode "The Tale of the Wisdom Glass" as Trevor/Judge Day.
For some unknown reason this episode isn't on paramount streaming.