New Delhi: The residents of national capital woke up to a thick blanket on fog on Wednesday. At least 21 trains, to and from Delhi, are running late due to the extreme weather conditions and low visibility. Meanwhile, the pollution levels remained under ‘satisfactory’ category. The city and its neighbouring areas witnessed a sudden spell of rain accompanied with thundershowers on Monday and Tuesday.

Heavy rains drastically reduced the pollution level in Delhi, which recorded the best air quality of this year on Tuesday morning. As per the Central Pollution Control Board (CPCB) data, the overall air quality index (AQI) in the city was 133, which falls in the ‘moderate’ category.

Twenty-one north bound trains including Mahabodhi Express, Lichchvi Express, Brahmputra Mail, Rewa Express, Shiv Ganga Express and Vikramshila Express were running late due to bad weather conditions.

It was a cold Wednesday morning in the national capital with rains in the past 24 hours bringing down the minimum temperature to 8 degrees Celsius, a MeT department official said.

The city received 27.8 mm rains till 8.30 AM, he said. The minimum temperature was 12.5 degrees Celsius on Tuesday. Relative humidity was 100 percent this morning, he added.

Partly cloudy skies with possibility of very light rains and thundershowers are forecast for later part of the the day. Maximum temperature is likely to be around 19 degrees Celsius.

The maximum temperature was 19.4 degrees Celsius on Tuesday.