Moderate fog cover was witnessed on Saturday in the national capital, leading to delay in 52 rail services and re-scheduling of 12 others.
Flight operations at the Indira Gandhi International Airport though were normal, airport officials said.
According to a MeT department official, visibility was recorded at 1,500 metres at 5:30 am (local time). Three hours later, it dropped to 400 metres.
The minimum temperature settled at 8.2 degrees celsius, considered as normal for the ongoing season. Relative humidity was recorded at 92 per cent at 8:30 am.
"52 trains were running behind their respective schedules by several hours. Also, 12 trains required to be rescheduled due to poor visibility caused by the fog layer," a railway official said.
The MeT department official predicted that the skies will largely remain clear as the day progresses.
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"The maximum temperature is expected to hover around 24 degrees celsius," he added.
On Friday, the minimum temperature was recorded at 7.9 degrees celsius while the maximum temperature stood at 24.4 degrees celsius for the day.