 The Meuse River is rain-fed and projected changes in precipitation due to climate change will affect its hydrological regime. An important tributary of the Meuse, the ARVA, was studied using the HPV hydrological model. Three regional climate scenarios were used based on IPCCCO2 emission scenarios A1B, A2, and B1. The reference model run at the same resolution was used to represent the current climate. Biases in the climate model output were investigated and corrected for using single-site observations. Results showed a small increase in overall discharge during the beginning of the 21st century for the B1 scenario, but a decrease in summer discharge towards the end of the century due to the diminished buffering effect by the snowpack. It is important to note that only one GCM was used and it would be interesting to repeat the analysis with multiple models. This article was authored by T. L. H. Reeson, R. T. W. L. Hercmans, W. Trink, and others.