Stars from London 2012 will travel from Mansion House to the Mall later today in a convoy of 21 open top floats.
Hundreds of thousands are expected to turn out to cheer on the Olympic champions. They'll include all our gold medallists. Among them, sailor Ben Ainslie from Lymington; cyclist Dani King from Hamble and horse rider Tina Cook from Worthing.
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Philippa has Saturday's weather for the east
Philippa has Saturday's weather for the west
Simon has Saturday's forecast for the west of the region