A low pressure area is likely to form over southwest Bay and adjoining area during next 48 hours, according to a release issued by Bangladesh Meteorological Department (BMD) on Monday evening.
It is likely to intensify afterwards, said the release.
Meteorologist Shahnaz Sultana said that there were reports of rain in many areas in the districts around Dhaka and from different parts of the country. It has reduced the heatwave.
She said that the weather may remain like this until the low pressure is formed.
“Rain and thundershowers accompanied by temporary gusty and squally wind is likely to occur at many places over Rangpur, Rajshahi, Khulna and Barisal divisions and at a few places over Dhaka, Chittagong, Mymensingh and Sylhet divisions with hails at isolated places.”
Day and night temperature may fall by 1-2°C over Rangpur, Mymensingh and Sylhet divisions. It may remain nearly unchanged elsewhere over the country.
Rainfall activity may increase in the next five days, according to met office.
Meanwhile, the highest temperature has dropped by 2°C in the country.
The highest temperature recorded at Mongla at 36°C on Monday which was 38.3°C in Mongla on Sunday.
At the same time, the maximum temperature of Dhaka was recorded at 33.4°C on Sunday which was 35.1°C on Sunday.