Bumper entries are expected to mark the 200th anniversary of the Border Union Show.
Competitors will be arriving from across the UK to take part in more than 500 open classes throughout the weekend.
Categories will include Horses, Ponies, Cattle, Sheep, Donkeys, Goats, Poultry, Rabbits, Shepherds' Crooks, Horse Shoeing, Young Farmers Stock Judging and Industrial Arts.
As well as the large array of competitions, there will also be around 200 trade stands and numerous displays for visitors to enjoy.
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High pressure brings a mainly dry spell. Winds become lighter. Feeling warmer in any sunshine during Wednesday
The second of our special reports looks at the history of the Borders Railway - starting with the closure of the Waverley Line in 1969.
Predominantly dry over the coming few days with variable cloud & some sunshine. Cool nights but daytime temperatures recovering a little