In the paper the verification of crop water deficit forecasts are presented. The 10- and 20-day forecasts have been developed in the monitoring system of water deficiency and excess conducted by the Institute of Technology and Life Sciences. The analysis was performed for the Bydgoszcz station representing Kujawy Region, in the months of the growing season (April-September) in 2013–2014. Two verification criteria were adopted: the absolute difference between actual and predicted SPI cannot be greater than 0.1 and the agreement of the precipitation category classes. The verifiability is determined as a relative frequency of the forecasts meeting these criteria. It was found that the average verifiability of 10-day forecasts was equal to 94% and of 20-day forecast 86% for the assumed criteria. Both forecasts of CDI values and forecasts of water deficit classes have high verifiability (91% and 89% respectively).