Today (02.12.2021)
Light to moderate rain is likely to occur at isolated places over Western Ghats districts.
Light rain is likely to occur at isolated places over Tamilnadu, Puducherry & Karaikal area.
Tomorrow (03.12.2021)
Moderate is likely to occur at a few places over South Tamilnadu, Western Ghats districts, interior Tamilnadu.
Light rain is likely to occur at few places over Coastal 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 partially cloudy. Light rain is likely to occur in some areas. Maximum and minimum temperature is likely to be around 31 ˚C and 25 ˚C respectively.
Reference:
http://imdchennai.gov.in/tn_fc.pdf
http://www.imdchennai.gov.in/hrw_district.htm