It's 40 years since postcodes were rolled-out across the UK to make letter-sorting easier.
Norwich pioneered the idea and, to mark its role, has been issued with a blue plaque for the city centre by Royal Mail.
There are now 1.8 million postcodes covering 29 million addresses across the country.
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A charity single dedicated to the memory of tennis star Elena Baltacha is due to be released next week.
Newmarket could soon be renamed 'Royal Newmarket', if councillors in the town get their way.
Heavy rain gradually moves away northwards with largely cloudy but drier conditions will follow.