Graincast is a digital agriculture initiative from CSIRO that provides real-time and early-season crop monitoring and identification, and crop-yield forecasts. It enable users to monitor and forecast grain yields after entering a series of inputs into a smartphone app. The data generated through the app is then used to inform machine learning models to determine what crops are grown where. The app can help grain growers forecast soil moisture and crop yield in individual paddocks or at whole of farm level, and also enables forecasting of grain production at the regional and national scales. Using simple local paddock information, national high-resolution satellite and sensor data sources and CSIRO's innovative analytics, the free Graincast™ app seeks to help growers with their crop decision-making instincts. It uses national weather and soils information to forecast soil moisture and yield for the grain crops planted.