New Delhi: Mainly clear skies prevailed in the national capital even as dense cover of fog was witnessed in early morning hours which delayed 84 trains while 37 others were rescheduled due to poor visibility in northern states.

The visibility at Safdarjung and Palam was recorded at 300 metres and 200 metres, respectively, at 5.30 am. It dipped to 200 metres at Safdarjung, while it was 300 metres at Palam, at 8.30 am, said a MeT official.

The fog resulted in delay of 84 trains, while 37 trains were rescheduled, said a senior railway official.

Flight operations at Delhi airport, however, remained normal. The maximum temperature was recorded at 24.5 °C, three notches above average, while the minimum was pegged at 7.8 degrees, a Met Department official said. The weatherman has predicted a mainly clear sky for Sunday with the likelihood of moderate fog.