The main objective of the SMaRT-OnlineWDN project is the development of an online security management toolkit for water distribution networks which is based on sensor measurements of water quality as well as water quantity. The development of a demand prediction module is one objective of the “online simulation” project work package 5 of. The task is the development of a prediction module that allows for the prediction of a single future water demand and the determination of a complete demand pattern for the following 24 hour cycle. The objective of this deliverable is to give a report of the development and implementation of the demand prediction module. Initially, section 1 gives the context of the demand prediction module in the project. Section 2 explains the objectives of the module and how they are integrated in the workflow of the SMaRT-OnlineWDN process. Section 3 gives the details on Prediction algorithm. Section 4 proceeds with details on the software implementation. A conclusion on the development is given in section 5.