DRY weather is being forecast for tomorrow when the Queen visits Burghley House and Stamford.
The sun may even break through at some point and temperatures will be between 11C and 15C.
Invited guests, including Mercury competition winners, will start to gather at Burghley House from 9.30am and the Queen is expected to arrive at lunchtime for a picnic.
The event has been organised by the Lord Lieutenants of Lincolnshire, Rutland, Cambridgeshire and Northamptonshire. Each county will have a tent at the event and the Queen will visit all four.
At about 2.30pm the Queen will leave Burghley and the Red Arrows will fly overhead. She will then be drive slowly through Stamford where hundreds are expected to be waiting to catch a glimpse.
Her car will travel across the town bridge, up Mary’s Hill, along St Mary’s Street and St John’s Street, across Red Lion Square, on to Red Lion Street and Broad Street, along Star Lane, St Paul’s Street, St George’s Street, St George’s Square and St Mary’s Street, before heading back across the town bridge.
Police will direct people to the best places to view.
Prince Philip had been due to accompany the Queen but will miss the trip as he continues to recover from a bladder infection. The Duke and Duchess of Cambridge, William and Kate, will join the Queen on a visit to Nottingham in the morning but will not be accompanying her to Burghley or Stamford. She will continue to Corby after the drive through Stamford.