Today (11.12.2021)
Light to moderate rain is likely to occur at isolated places over Coastal Tamilnadu and adjoining Interior districts, Puducherry & Karaikal.
Mainly dry weather is likely to prevail over rest Tamilnadu with light rain at isolated places.

Tomorrow (12.12.2021) Thunderstorm with light to moderate rain is likely to occur at a few places over Tamilnadu, Puducherry & Karaikal.

THUNDERSTORM WARNING:
Thunderstorm with lightning is likely to occur at isolated places over Tamilnadu.

LOCAL FORECAST FOR CHENNAI CITY AND NEIGHBOURHOOD:
For next 24 HRS:
Sky condition is likely to be partly cloudy. Light to moderate rain is likely to occur in some areas. Maximum and minimum temperature is likely to be around 32˚C and 25 ˚C respectively.

Reference:
http://imdchennai.gov.in/tn_fc.pdf
http://www.imdchennai.gov.in/hrw_district.htm