"Sky would be cloudy. Thunder development or light rainfall is likely in some areas of the city," an India Meteorological Department (IMD) official said.
The maximum temperature is expected to hover around 36 degrees Celsius, the IMD official added.
Humidity at 8.30 a.m. stood at 86 percent.
Thursday's maximum temperature settled a notch above average at 36.2 degrees Celsius, while the minimum touched 26.8 degrees Celsius, average for this time of the year.
Monsoon arrived in Delhi a fortnight ahead of schedule June 16 but the metropolis had been witnessing almost a dry spell since June 17, which was attributed to a "weak monsoon" caused by low atmospheric pressure.