Other forms: meteorologists
The expert TV reporter who presents the nightly weather forecast is a meteorologist. If you want to know if it's going to rain on your picnic this weekend, ask a meteorologist!
Meteorologists get their name from the Greek meteōrologia, "discussion or study of high things." The "high thing" meteorologists study and report on is the planet's atmosphere — and the way it affects the weather. While people have tried to predict the weather for centuries, it's only recently that science has caught up with this goal, and meteorologists usually get it right.