The Met Office is warning of heavy rainfall across the South coast overnight, which could lead to surface flooding and rivers could burst their banks. It's predicting up to 70mm in some areas, accompanied by thunder and more high winds.
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Holly has the latest forecast for the east and west of the region.
Butterflies and nerves of steel were behind the images shared and seen by millions across the globe.
The Duke and Duchess of Sussex thanked everyone who took part in the celebrations on Saturday, Kensington Palace said.