I would agree, but as DoreenMichele pointed out, they were treated the same in ancient Greece. And it's not like the Greeks had extremely sophisticated climate models able to predict the harvest seasons in advance. As far as I know, even today these sorts of models are hit-and-miss. I think we should call it astrology in English in this circumstance.

(Edit) even so if you look at an untranslated version of the Politics (https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext...), you can see that he is using the word ἀστρολογίας (astrologias).