More than 50 trains were delayed and 16 cancelled due to dense fog in Delhi this morning. Northern Railways said, 23 trains were also rescheduled as the visibility reduced to less than 400 meters. <br/><br/>The minimum temperature in the city settled at around 10.4 degrees Celsius. The weatherman has predicted mainly clear skies for the day, with the maximum and minimum temperatures expected to settle at 24 and 10 degrees Celsius.