St. Swithin's Day, observed on July 15th, is a day in English folklore associated with a weather-related superstition. The legend states that if it rains on St. Swithin's Day, it will rain for the next 40 days, and if it's fair, the next 40 days will be fair as well. This belief stems from the story of St. Swithin, a Bishop of Winchester who requested to be buried outside, where rain could fall on his grave. His remains were later moved inside the cathedral on July 15th, and legend has it that a storm erupted, signifying his displeasure.
Yesterday was St Swithen's Day and it certainly pouted down with rain so it could also be a sign that the School holidays are on the way!