Development of physics-based atmospheric weather prediction models began in the 1950s an oceanic prediction models in 1980s, whereas dynamo-based solar prediction models have been built only much more recently. This is possible now because, with the progress of observational and theoretical knowl... Show moreDevelopment of physics-based atmospheric weather prediction models began in the 1950s an oceanic prediction models in 1980s, whereas dynamo-based solar prediction models have been built only much more recently. This is possible now because, with the progress of observational and theoretical knowledge, the global-scale solar dynamo models have reached the stage that they can be calibrated for the Sun by adjusting only a few parameters. We present the hindcasts and forecasts of solar cycles obtained from dynamo-based tools. Currently some mean properties of solar cycles can be predicted with significant skill by assimilating magnetic field data from previous cycles. These models are limited to prediction of longitude-averaged solar cycle features. We also discuss the present constraints in simulating simultaneously short-term as well as decadal and longer-term solar magnetic features. We close by presenting our views concerning future prospects for predicting 'active longitudes' along with active latitudes. Show less