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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Perhaps a few bright spells, but generally rather cloudy with some showery rain possible at times, especially in the afternoon.
It will cloud over tonight, with the risk of rain on Sunday.
Norwich City Manager Alex Neil admits that his team's hopes of sealing automatic promotion to the Premier League are probably over.