Delhi saw a chilly Christmas Thursday with dense fog delaying over 115 trains. The met department forecast similar Friday.
The maximum temperature went six notches below season's average at 16 degrees Celsius while minimum was 6 degrees Celsius -- two notches below season's average.
Sky Friday will become clear after foggy morning, said an official of Indian Meteorological Department.
Friday's maximum and minimum temperatures are likely to hover around 17 and 6 degrees Celsius respectively.