New Delhi, Dec 27: Severe chill returned to the capital today with the mercury plummeting to 4.8 degrees Celsius, two degrees below normal. The minimum temperature, which was 8.3 degrees C yesterday, further dropped four notches. Visibility was 700 meters. The Met office forecast mainly clear sky tomorrow morning with shallow fog or mist. A further drop in the night temperature has been predicted for the next two days. The minimum temperature is likely to drop to 4 degrees Celsius tomorrow.