Economics is a science in the sense that it is a field of study. Weather science couldn't, for a long time, accurately predict the weather, but study and model

Economics is a science in the sense that it is a field of study. Weather science couldn't, for a long time, accurately predict the weather, but study and model refinement progressed to the point where weather prediction is more reliable now than in the past. Economics is the science of human behavior at scale, and as such, does indeed have predictive power. It is not always reliable as there are dynamic conditions and incomplete data that make the models not always fit. That doesn't disqualify it from being a science (especially the data-oriented part of it). Economics practice falls on its face when you attempt to inject ideology, though.