"The minimum temperature recorded at 8.30 AM was 5 degrees Celsius, two notches below normal while the humidity was recorded at 100 per cent," a MeT official said.
The visibility was recorded at 300 meters at 5.30 AM which improved to 500 meters at 8.30 AM.
The weatherman has predicted a clear afternoon with the possibility of maximum temperature settling around 19 degrees Celsius.
Airport officials said 14 flights were delayed due to fog.
According to a Railway official, 60 trains were running late due to fog, 18 trains had to be rescheduled and 14 cancelled.