The remaining parts of the state will experience monsoon rainfall by June 20-21, it said.
"Monsoon is progressing in its normal course. It reached north Bengal and Sikkim two days back. It is expected that monsoon will hit north-east part of Bihar first by June 17-18 while the remaining parts of the state will witness monsoon rains in next three days thereafter i.E. By June 20-21," Patna Met director Ashish Sen told PTI.
Since monsoon is at the doorstep, there is a high level of moisture in the air that causes pre-monsoon rains, Sen said, adding that the state will continue to witness pre-monsoon rains till the advent of monsoon.
During the day, Patna recorded a maximum temperature of 38 degrees Celsius, while Gaya was the hottest place in the state with a maximum temperature of 39.7 degrees.
Bhagalpur registered maximum temperature of 35.4 degrees Celsius and Purnea 33.6 degrees Celsius.
Met department has forecast light rainfall in almost all parts of the state.
