A met department official said: "Delhi experienced season's worst fog Sunday evening after 8.30 p.m. The maximum visibility at Safdarjung was 600 metres and 50 metres at the Palam airport. Runways at airport are likely to become unoperational by 10 p.m."
Monday will start with shallow fog but the sky will be mainly clear later in the day, said an official of the India Meteorological Department.
The maximum and the minimum temperatures are likely to hover around 16 and 6 degrees Celsius, respectively.
Sunday morning was moderate with the minimum temperature settling a notch above the season's average at 7.8 degrees Celsius.
The humidity was 75 percent.
A light fog enveloped the city in the morning but flights remained unaffected. Around 40 trains coming towards Delhi were running late while 10 trains were rescheduled due to fog in parts of north India, an official of the Northern Railway said.
Saturday's maximum and minimum temperatures were recorded at 18.5 degrees Celsius (two notches below season's average) and 6.4 degrees Celsius (a notch below the season's average), respectively.
--IANS (Posted on 05-01-2014)