With Upper Air circulations (UAC) at either end of the Monsoon Axis (Refer Satellite Image), the Monsoon is set to become active right from Himachal, Uttarakhand, West Uttar Pradesh, Delhi, Madhya Pradesh, Chhattisgarh, Telangana, Odisha and parts of Andhra. The rains will gradually shift eastwards as the UAC in bay moves inwards. Meanwhile, the offshore trough may remain little active along Karnataka, Goa and North Kerala coast. Thunderstorm activity seen in North Tamil Nadu.
Chennai will have a cloudy start with maximum touching 36-37 C in later part of the day. There is a good chance of rains in city, suburbs and outskirts at night.
Coimbatore will remain cloudy with temperature peaking at 31-32 C. There is chance of light rains later in the day.
Madurai will be under relentless heatwave with maximum temperature settling close to 39 C.