Thousands of people are expected to attend the final day of this year's Notting Hill Carnival.
The "adult day" of the annual festival will see 60 bands perform with costumed performers parading on the streets.
Some 7,000 police officers will be on control to "facilitate a safe and vibrant carnival".
Revellers attending the carnival's family day yesterday praised the event's atmosphere, saying it was "brilliant fun".
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After a frosty start, southeastern areas will be dry with increasing amounts of sunshine developing. It will remain cold throughout the day.
Higher food and petrol prices are expected to send inflation to its highest level in 28 months when official figures are released later.
The Prime Minister will detail her 12-point plan on negotiating Britain's exit from the European Union during a speech on Tuesday.