The Chennai Regional Meteorological Centre has forecast moderate rainfall across Tamil Nadu’s southern and delta districts over the next one week.
The weather office said some locations may also see thunderstorms accompanied by lightning.
It further cautioned that rain could occur with strong winds in a few areas, and advised people to stay alert to changing conditions.
The update comes as the IMD issued a heavy rain warning covering 23 districts, with a list of affected places released along with the alert.
