Her Majesty was due to attend a military celebration in Wales during the country's St David's Day celebrations, but was forced to cancel her planned engagements.
Buckingham Palace declined to comment on her condition, but a spokeswoman earlier confirmed the Queen would spend the weekend at Windsor.
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Kate Haskell has the weekend forecast for the east of the region
Kate Haskell has the weekend forecast for the west of the region.
Kate Haskell has the pollen count for the Meridian region