Dense fog continued to disrupt rail, road and air traffic in morning in national capital today. According to the airport official operation of two dozen of flights were delayed as the visibility reduced to 50 metres. Due to the fog, over 20 trains are reported to be running behind schedule. Due to the late arrival of trains at railway stations in Delhi departure time of some trains have also been reschedule.According to the Met department, the minimum temperature was recorded at 6.8 degree celsius, a degree below normal while the maximum settled at 21.1 degree Celsius in Delhi.The weatherman has predicted clear sky during the day and partly cloudy weather towards night with possibility of light rains in some parts of the city. Dense fog will continue on Sunday as well.Meanwhile in Uttar Pradesh, the minimum and maximum temperatures have risen in most of the pockets in last 24 hours.According to met department that early morning fog was occurred in some pockets in western UP this morning, but weather is mainly clear across the state. According to the met department, the minimum temperature in the state was between 4 and 10 degree Celsius that gave some relief from biting cold at night. According to reports road transport services are now normal in the state but several trains are still running late. Temperatures in Gorakhpur, and Faizabad division rose while Kanpur and Agra divisions recorded below normal temperatures in last 24 hours.