The UK premiere of the long-awaited Hobbit film will be held in London tonight.
The Duke of Cambridge is expected to be in attendance along with other stars.
His wife, The Duchess of Cambridge, won't be there as she is still resting.
Yesterday St James's Palace said: "The Duchess of Cambridge will not attend The Hobbit premiere tomorrow evening and will continue to rest privately. The Duke of Cambridge will attend as planned.
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The rain will become heavy at times, and also prolonged.
Rain will spread across the region by lunchtime, turning heavy in places. Staying cloudy with some brightness in the southeast later.
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