More than 1,500 people watched a special performance on Aldeburgh seafront last night.
Benjamin Britten's Peter Grimes had an official homecoming in the town in which the opera is set.
It's part of celebrations to mark 100 years since Britten's birth in Lowestoft. There are also shows on Wednesday and Friday night.
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Suffolk boxer Anthony Ogogo says he wants to make up for lost time in his pursuit of a world title.
Many places will stay cloudy this afternoon, although there will be a few bright spells around. Scattered showers will develop in places.
People across East Anglia have been turning out in big numbers to remember those who lost their lives in the Battle of the Somme.