The Met Office has predicted overcast conditions for tomorrow along with the possibility of duststorm and thunderstorm.
The minimum temperature was recorded at 25.8 degrees Celsius, three notches above the season's average, a Weather official said.
According to Met office, April 2016 so far was the hottest month in the last five years, with temperatures soaring as high as 44 degrees Celsius in Palam and 42 degrees Celsius in Safdarjung on April 16.
"The drop in temperature is because of a Western disturbance prevailing for the last three days due to which there is a cloud cover over the plains and hilly regions have received showers.
"The initial data suggests that April 2016 so far has been the hottest in the last five years," he added.
The humidity in air remained less and oscillated between 19 and 44 per cent.
"The skies will be partly cloudy. Duststorm and thunderstorm are likely to occur towards the evening and night tomorrow.
"The maximum and minimum temperatures are expected to hover at 38 and 26 degrees Celsius," the official said.
