Rainfall measuring 20.7 mm lashed parts of the capital till 8.30 AM and humidity in the air was recorded at 93 per cent, a MeT official said.
The weatherman has predicted that light rains might continue throughout the day.
"The sky will be mainly clear with possibilities of light rain and thundershowers through the day," the official said.
The Met department on June 22 had forecast that monsoon was likely to hit Delhi by June 26.
Yesterday, the minimum temperature was recorded two notches below the normal at 25.8 degrees Celsius.
