Today (01.12.2021)
Thunderstorm with Light to moderate rain is likely to occur at isolated places over districts of coastal Tamilnadu, Puducherry & Karaikal area.
Light rain is likely to occurat isolated places over interior districts Tamilnadu.

Tomorrow (02.12.2021)
Light to moderate is likely to occur at isolate places over Tamilnadu, Puducherry & Karaikal area.

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

LOCAL FORECAST FOR CHENNAI CITY AND NEIGHBOURHOOD:
For next 24 HRS:
Sky condition is likely to be generally cloudy. Thunderstorm with light to moderate rain is likely to occur in some areas. Maximum and minimum temperature is likely to be around 30 ˚C and 25 ˚C
respectively.

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