meteorologist

collective noun

is one who has more scientific aids than you have, in guessing wrong about the weather.

A meteorologist is one who has more scientific aids than you have, in guessing wrong about the weather.

is a nervous lot because their future is always up in the air.

Meteorologists are a nervous lot because their future is always up in the air.

is a special (but not particular) kind of liar.

is a high-tech weather prognosticator whose accuracy you may usually surpass by sticking your head out the window.

A high-tech weather prognosticator whose accuracy you may usually surpass by sticking your head out the window.

is just a person who takes small-talk way too seriously

Meteorologists are just people who take small-talk way too seriously

is someone who don't know what it's like to have work place small talk about the weather.

Meteorologists don't know what it's like to have work place small talk about the weather.