The maximum temperature today is likely to be around 37 degrees Celsius as the day progresses.
"The sky was clear in the morning with no chances of rain so far," an India Meteorological Department official said.
It has been a rapid transition for the people of Delhi, who enjoyed an extended winter in the first half of March, but are now struggling with heat. Tuesday's maximum temperature settled at 36.7 degrees Celsius and the minimum temperature was 21.8 degrees Celsius, four above the season's average.
The India Meteorological Department has declared heat wave conditions in Rajasthan, Gujarat and Madhya Pradesh. On Monday, Barmer in Rajasthan sizzled at 44 degrees Celsius.
The western Odisha town of Titlagarh recorded the maximum temperature of 43 degrees followed by Bolangir at 41 degrees and Hirakud at 40.8 degree Celsius. Capital city Bhubaneswar registered 34.4 degree Celsius, said the regional Met centre.
Pre-monsoon rains will be negligible this season, which may cause excessive heat in April and May, weather analysts had said on Tuesday.