The India Meteorological Department (IMD) has forecast continued rainfall across southern India from October 19 to October 24, 2026, with isolated heavy to very heavy rain likely in Tamil Nadu, Puducherry, Kerala, Karnataka and parts of Andhra Pradesh. Thunderstorms, lightning and gusty winds are also expected in several regions. Here is the state-wise weather forecast, including rainfall warnings, affected dates and the IMD's fishermen advisory for the southwest Arabian Sea.