'astrometeorologist' is formed from the prefix 'astro-' (from Greek 'astron' meaning 'star') combined with 'meteorologist' (from Greek 'meteōron' meaning 'thing high in the air' + '-logia' meaning 'study of').

'meteorologist' comes from Greek 'meteōrologia' via Latin and Old French into Middle/Modern English as 'meteorology' and 'meteorologist'; 'astrometeorologist' is a modern compound, created by prefixing 'astro-' to 'meteorologist' in the 20th century as studies of 'space weather' developed.

Originally, 'meteorology' referred to atmospheric phenomena; with advances in space science, combining 'astro-' with 'meteorologist' gave the specialized meaning of someone who studies and predicts space weather influences on Earth and technology.