Today (03.12.2021)
Thunderstorm with Moderate rain is likely to occur at a few places over South Tamilnadu, Western Ghat and adjoining Interior districts.
Light rain is also likely to occur at isolated places over rest Tamilnadu, Puducherry & Karaikal area.

Tomorrow (04.12.2021)
Thunderstorm with heavy rain is likely to occur at isolated places over Madurai,Virudhunagar and Tirunelveli districts.
Thunderstorm with Moderate rain is likely to occur at many places over rest Western Ghats and Interior Tamilnadu districts.
Light rain is also likely to occur at isolated places over North Coastal Tamilnadu districts, Puducherry & Karaikal area.

HEAVY RAINFALL WARNING:

Tomorrow (04.12.2021): Heavy rain is likely to occur at isolated places over Madurai, Virudhunagar and Tirunelveli districts.

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 partly cloudy. Maximum and minimum temperature is likely to be around 31 ˚C and 24 ˚C respectively.

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