Today(21.12.2021) & Tomorrow (22.12.2021)
Mainly dry weather is likely to prevail over Tamilnadu, Puducherry & Karaikal.

TEMPERATURE WARNING:

Today (21.12.2021): Minimum temperature is likely to be below normal by 2-3 0C over western Ghat & interior districts of Tamilnadu and by 1-2 0C over coastal Tamilnadu.

FOG WARNING:
Today (21.12.2021): Shallow fog is likely to occur at a few places over western Ghat & interior districts of Tamilnadu.

LOCAL FORECAST FOR CHENNAI CITY AND NEIGHBOURHOOD:
For next 24 HRS:
Sky condition is likely to be partly cloudy during morning hours and mainly clear thereafter.
Maximum and minimum temperature is likely to be around 29˚C and 20 ˚C respectively.

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