Minimum temperature in Delhi drops to 4.2 degrees Celsius India Published: Friday, January 22, 2021, 11:10 [IST] New Delhi, Jan 22: The minimum temperature in the national capital dropped to 4.2 degrees Celsius, three notches below normal on Friday, the India Meteorological Department (IMD) said. Moderate fog lowered visibility to 350 metres at Safdarjung and Palam, officials said. According to reports, very dense fog is when visibility is between 0 and 50 metres. In case of dense fog, visibility is between 51 and 200 metres, moderate 201 and 500 metres, and shallow 501 and 1,000 metres. A fresh Western Disturbance affecting the western Himalayas is likely to provide some relief from the chill. The minimum temperature in the national capital is expected to increase to 9 degrees Celsius by Sunday as a result of easterly winds and cloud cover.