Folklore has it that Groundhog Day, celebrated on February 2nd, can predict the weather for the upcoming spring. According to tradition, if the groundhog sees its shadow due to clear weather, it will retreat back into its burrow, indicating six more weeks of winter. If it doesn't see its shadow because of cloudiness, spring will arrive early. While it's more fun than scientific, many look forward to this quirky prediction as a light-hearted way to speculate about what the weather might hold.