I agree. Weather prediction is based on fluid dynamics models. The accuracy of weather prediction is based on the computational power running the model and the spatial and temporal resolution of inputs to the model.
There are more variables, more unknowns, more assumptions in the climate models.
Which necessarily follows because the factors that influence climate are more varied than the factors that influence weather.
Contemporary anthropology has been an avocation of mine for a couple of decades.
In my observations, I've noticed that the faster science advances i.e. computers, nanotechnology, medicine, the more people seek "understanding" and therefore control over knowledge. It seems to be a hardwired characteristic of humankind to slip into superstition when the advance of knowledge outstrips the individual's ability to keep up. Many people are brilliant in one field or another and dolts in most everything else.
This would seem to be the case with the more or less recent emergence of environmentalism as a cause that many otherwise intelligent people attach to as a means of keeping "control" over something in their lives.
Scientists are no different than the less technically schooled in this regard.
Just a thought...