The railway line between Hilden and Immigrath was closed on Thursday morning.
Because of the storm, objects got into the overhead line.
There are delays or partial failures on the parallel route to Cologne-Düsseldorf, reported a spokesman for Deutsche Bahn.
The RE6 (Cologne / Bonn-Minden Airport), RE1 (Aachen-Hamm) and the S1 Dortmund-Solingen S-Bahn are affected.