Dairy prices steady at GDT, Westpac lifts forecast to $8/kg 20 Apr, 2021 10:31 PM 3 minutes to read Dairy prices were mostly steady at this morning's Global Dairy Trade auction. Photo / NZ Herald Dairy prices were mostly steady at this morning's Global Dairy Trade auction. Photo / NZ Herald Westpac has lifted its current season farmgate milk price forecast by 75c to $8.00 kg, following on from a steady Global Dairy Trade auction. The bank's senior agri economist, Nathan Penny, also expects global dairy prices to remain stronger for longer in the current dairy price cycle. At the same time, the bank has stuck with its similarly healthy $7.90/kg forecast for 2020/21.