Bengaluru faces a thunderstorm and lightning warning on Friday, November 6, as residents step out for Dhanteras shopping. Rainwater has already slowed traffic in parts of east Bengaluru, while the IMD forecasts a relatively calmer Diwali Sunday. Bengaluru weather today is covered with cloudy sky, and the India Meteorological Department (IMD) has warned of thunderstorms, lightning and squalls across South Interior Karnataka today, 6.