School closures affect Ranchi, West Singhbhum, East Singhbhum and Simdega districts.
The reason is the rain and wind caused by Cyclone Arnab.
Classes from kindergarten through grade twelve are cancelled for two days.
The storm first hit the coast of Andhra Pradesh before influencing Jharkhand's weather.
The storm, named Cyclone Arnab, moved from the sea and is making very fast wind and lots of clouds.
All students, from the youngest class to the last grade, will stay at home to stay safe.
The country's weather service says the wind can reach speeds like a fast car.
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