It’s Saint Swithun’s Day today

Saint Swithun is very much the British equivalent of Punxsutawney Phil

St Swithin’s day if thou dost rain For forty days it will remain St Swithun’s day if thou be fair For forty days ‘twill rain na mair

Portrait of St Swithun in the Benedictional of St Æthelwold, c. 970s