Chennai Weather Forecast. Providing a local 3 hourly Chennai weather forecast of rain, sun, wind, humidity and temperature. The Long-range 10 day forecast also includes detail for Chennai weather today. Live weather reports from Chennai weather stations and weather warnings that include risk of thunder, high UV index and chennai weather news in tamil weather in chennai tamil nadu weather forecast chennai cyclone: கோவை, நீலகிரி ... Visit us on: Facebook Twitter. ... Chennai Extended Forecast with high and low temperatures ... 2 Week Extended Forecast in Chennai, Tamil Nadu, India. Scroll right ... Emergency Message for U.S. Citizens: United States Consulate General Chennai, December 5, 2016. The U.S. Consulate General in Chennai will operate with reduced staffing on December 5, 2016, and has temporarily suspended appointments for routine services to U.S. citizens and visa applicants. Applicants will be informed by email. Tomorrow's temperature is forecast to be NEARLY THE SAME as today. Winds SW at 5 to 10 mph. Chance of rain 90%. Variable clouds with scattered thunderstorms. Winds SW at 10 to 15 mph. Chance of rain 50%. Scattered thunderstorms. Winds SSW at 5 to 10 mph. Chance of rain 60%.